From: Heiko Schlittermann (HS12-RIPE) <hs@schlittermann.de>
Date: Thu, 28 Jan 2016 21:20:33 +0000 (+0100)
Subject: Fix CVE-2016-1531
X-Git-Tag: exim-4_86_1~1
X-Git-Url: https://git.exim.org/exim.git/commitdiff_plain/43ba2742c700d625dcdcdaf7bbadc2f72776854a

Fix CVE-2016-1531

Add keep_environment, add_environment.
Change the working directory to "/" during the early startup
phase.

(cherry picked from commit bc3c7bb7d4aba3e563434e5627fe1f2176aa18c0)
    (cherry picked from commit 2b92b67bfc33efe05e6ff2ea3852731ac2273832)
    (cherry picked from commit 14b82c8b736c8ed24eda144f57703cb9feac6323)
    (cherry picked from commit 9ca92d0c6e9c6f161bd8111366c6952d3a9315e2)
    (cherry picked from commit 0020c6d9ecfd98ed7b2b337ed4f898fdc409784b)
    (cherry picked from commit e8f96966360ea8867ad6a8b5affda6c37fa4958c)
    (cherry picked from commit ef6fb807c1e1a665f444f644c60c77269f7c5209)
---

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index a05b41b40..6a1963043 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -3149,6 +3149,11 @@ using one of the words &%router_list%&, &%transport_list%&, or
 settings can be obtained by using &%routers%&, &%transports%&, or
 &%authenticators%&.
 
+.cindex "environment"
+If &%environment%& is given as an argument, the set of environment
+variables is output, line by line. Using the &%-n%& flag supresses the value of the
+variables.
+
 .cindex "options" "macro &-- extracting"
 If invoked by an admin user, then &%macro%&, &%macro_list%& and &%macros%&
 are available, similarly to the drivers.  Because macros are sometimes used
@@ -3480,6 +3485,8 @@ name, but it can be a colon-separated list of names. In this case, the first
 file that exists is used. Failure to open an existing file stops Exim from
 proceeding any further along the list, and an error is generated.
 
+The file names need to be absolute names.
+
 When this option is used by a caller other than root, and the list is different
 from the compiled-in list, Exim gives up its root privilege immediately, and
 runs with the real and effective uid and gid set to those of the caller.
@@ -7687,7 +7694,7 @@ domain, host, address and local part lists.
 
 
 
-.section "Expansion of lists" "SECID75"
+.section "Expansion of lists" "SECTlistexpand"
 .cindex "expansion" "of lists"
 Each list is expanded as a single string before it is used. The result of
 expansion must be a list, possibly containing empty items, which is split up
@@ -13810,6 +13817,14 @@ received. See chapter &<<CHAPACL>>& for further details.
 This option defines the ACL that is run when an SMTP VRFY command is
 received. See chapter &<<CHAPACL>>& for further details.
 
+.new
+.option add_environment main "string list" empty
+.cindex "environment" "inherited"
+This option allows to set individual environment variables that the
+currently linked libraries and programs in child processes use. The
+default list is empty,
+.wen
+
 .option admin_groups main "string list&!!" unset
 .cindex "admin user"
 This option is expanded just once, at the start of Exim's processing. If the
@@ -14871,6 +14886,30 @@ process rather than a remote host, and is using &%-bs%& to inject the messages,
 .option ignore_fromline_local main boolean false
 See &%ignore_fromline_hosts%& above.
 
+.new
+.option keep_environment main "string list" unset
+.cindex "environment" "inherited"
+This option contains a string list of environment variables to keep.
+You have to trust these variables or you have to be sure that
+these variables do not impose any security risk. Keep in mind that
+during the startup phase Exim is running with an effective UID 0 in most
+installations. As the default value is an empty list, the default
+environment for using libraries, running embedded Perl code, or running
+external binaries is empty, and does not not even contain PATH or HOME.
+
+Actually the list is interpreted as a list of patterns
+(&<<SECTlistexpand>>&), except that it is not expanded first.
+
+WARNING: Macro substitution is still done first, so having a macro
+FOO and having FOO_HOME in your &%keep_environment%& option may have
+unexpected results. You may work around this using a regular expression
+that does not match the macro name: ^[F]OO_HOME$.
+
+Current versions of Exim issue a warning during startupif you do not mention
+&%keep_environment%& or &%add_environment%& in your runtime configuration
+file.
+.wen
+
 
 .option keep_malformed main time 4d
 This option specifies the length of time to keep messages whose spool files
@@ -15909,6 +15948,12 @@ it qualifies them only if the message came from a host that matches
 &%sender_unqualified_hosts%&, or if the message was submitted locally (not
 using TCP/IP), and the &%-bnq%& option was not set.
 
+.option set_environment main "string list" empty
+.cindex "environment"
+This option allows to set individual environment variables that the
+currently linked libraries and programs in child processes use. The
+default list is empty,
+
 
 .new
 .option slow_lookup_log main integer 0
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 2c34c2176..27365beae 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -2,6 +2,7 @@ Change log file for Exim from version 4.21
 -------------------------------------------
 
 
+HS/04 Add support for keep_environment and add_environment options.
 Exim version 4.86
 -----------------
 JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
diff --git a/src/OS/Makefile-Base b/src/OS/Makefile-Base
index 1d5a5f6f4..81fbee0c5 100644
--- a/src/OS/Makefile-Base
+++ b/src/OS/Makefile-Base
@@ -317,6 +317,7 @@ OBJ_EXIM = acl.o child.o crypt16.o daemon.o dbfn.o debug.o deliver.o \
         rda.o readconf.o receive.o retry.o rewrite.o rfc2047.o \
         route.o search.o sieve.o smtp_in.o smtp_out.o spool_in.o spool_out.o \
         std-crypto.o store.o string.o tls.o tod.o transport.o tree.o verify.o \
+        environment.o \
         $(OBJ_LOOKUPS) \
         local_scan.o $(EXIM_PERL) $(OBJ_WITH_CONTENT_SCAN) \
         $(OBJ_WITH_OLD_DEMIME) $(OBJ_EXPERIMENTAL)
@@ -573,6 +574,7 @@ dns.o:           $(HDRS) dns.c
 enq.o:           $(HDRS) enq.c
 exim.o:          $(HDRS) exim.c
 expand.o:        $(HDRS) expand.c
+environment.o:   $(HDRS) environment.c
 filter.o:        $(HDRS) filter.c
 filtertest.o:    $(HDRS) filtertest.c
 globals.o:       $(HDRS) globals.c
diff --git a/src/scripts/MakeLinks b/src/scripts/MakeLinks
index ea6265002..204bbc1d2 100755
--- a/src/scripts/MakeLinks
+++ b/src/scripts/MakeLinks
@@ -101,6 +101,7 @@ for f in dbfunctions.h dbstuff.h exim.h functions.h globals.h local_scan.h \
   exim_dbutil.c exim_lock.c expand.c filter.c filtertest.c globals.c \
   header.c host.c ip.c log.c lss.c match.c moan.c parse.c perl.c queue.c \
   rda.c readconf.c receive.c retry.c rewrite.c rfc2047.c route.c search.c \
+  setenv.c environment.c \
   sieve.c smtp_in.c smtp_out.c spool_in.c spool_out.c std-crypto.c store.c \
   string.c tls.c tlscert-gnu.c tlscert-openssl.c tls-gnu.c tls-openssl.c \
   tod.c transport.c tree.c verify.c version.c dkim.c dkim.h dmarc.c dmarc.h \
diff --git a/src/src/environment.c b/src/src/environment.c
new file mode 100644
index 000000000..aaa84f817
--- /dev/null
+++ b/src/src/environment.c
@@ -0,0 +1,54 @@
+/*************************************************
+*     Exim - an Internet mail transport agent    *
+*************************************************/
+
+/* Copyright (c) Heiko Schlittermann 2016
+ * hs@schlittermann.de
+ * See the file NOTICE for conditions of use and distribution.
+ */
+
+#include "exim.h"
+
+/* The cleanup_environment() function is used during the startup phase
+of the Exim process, right after reading the configurations main
+part, before any expansions take place. It retains the environment
+variables we trust (via the keep_environment option) and allows to
+set additional variables (via add_environment).
+
+Returns:    TRUE if successful
+            FALSE otherwise
+*/
+
+BOOL
+cleanup_environment()
+{
+if (!keep_environment || *keep_environment == '\0')
+  clearenv();
+else if (Ustrcmp(keep_environment, "*") != 0)
+  {
+  uschar **p;
+  if (environ) for (p = USS environ; *p; /* see below */)
+    {
+    uschar *name = string_copyn(*p, US Ustrchr(*p, '=') - *p);
+
+    if (OK != match_isinlist(name, CUSS &keep_environment,
+        0, NULL, NULL, MCL_NOEXPAND, FALSE, NULL))
+      if (unsetenv(CS name) < 0) return FALSE;
+      else /* nothing */;
+    else
+      p++;
+
+    store_reset(name);
+    }
+  }
+if (add_environment)
+  {
+    uschar *p;
+    int sep = 0;
+    const uschar* envlist = add_environment;
+    while ((p = string_nextinlist(&envlist, &sep, NULL, 0)))
+        putenv(CS p);
+  }
+
+  return TRUE;
+}
diff --git a/src/src/exim.c b/src/src/exim.c
index f9d57ab9c..beb5abc25 100644
--- a/src/src/exim.c
+++ b/src/src/exim.c
@@ -3723,8 +3723,19 @@ if (running_in_test_harness) smtputf8_advertise_hosts = NULL;
 is a failure. It leaves the configuration file open so that the subsequent
 configuration data for delivery can be read if needed. */
 
+/* To be safe: change the working directory to /. */
+if (Uchdir("/") < 0)
+  {
+    perror("exim: chdir `/': ");
+    exit(EXIT_FAILURE);
+  }
+
 readconf_main();
 
+if (cleanup_environment() == FALSE)
+  log_write(0, LOG_PANIC_DIE, "Can't cleanup environment");
+
+
 /* If an action on specific messages is requested, or if a daemon or queue
 runner is being started, we need to know if Exim was called by an admin user.
 This is the case if the real user is root or exim, or if the real group is
@@ -3881,7 +3892,7 @@ TMPDIR macro, if this macro is defined. */
 #ifdef TMPDIR
   {
   uschar **p;
-  for (p = USS environ; *p != NULL; p++)
+  if (environ) for (p = USS environ; *p != NULL; p++)
     {
     if (Ustrncmp(*p, "TMPDIR=", 7) == 0 &&
         Ustrcmp(*p+7, TMPDIR) != 0)
@@ -3921,10 +3932,10 @@ else
     uschar **new;
     uschar **newp;
     int count = 0;
-    while (*p++ != NULL) count++;
+    if (environ) while (*p++ != NULL) count++;
     if (envtz == NULL) count++;
     newp = new = malloc(sizeof(uschar *) * (count + 1));
-    for (p = USS environ; *p != NULL; p++)
+    if (environ) for (p = USS environ; *p != NULL; p++)
       {
       if (Ustrncmp(*p, "TZ=", 3) == 0) continue;
       *newp++ = *p;
@@ -4514,7 +4525,8 @@ if (list_options)
           (Ustrcmp(argv[i], "router") == 0 ||
            Ustrcmp(argv[i], "transport") == 0 ||
            Ustrcmp(argv[i], "authenticator") == 0 ||
-           Ustrcmp(argv[i], "macro") == 0))
+           Ustrcmp(argv[i], "macro") == 0 ||
+           Ustrcmp(argv[i], "environment") == 0))
         {
         readconf_print(argv[i+1], argv[i], flag_n);
         i++;
diff --git a/src/src/functions.h b/src/src/functions.h
index 02579040e..8ddf848f2 100644
--- a/src/src/functions.h
+++ b/src/src/functions.h
@@ -104,6 +104,7 @@ extern int     check_host(void *, const uschar *, const uschar **, uschar **);
 extern uschar **child_exec_exim(int, BOOL, int *, BOOL, int, ...);
 extern pid_t   child_open_uid(const uschar **, const uschar **, int,
 		 uid_t *, gid_t *, int *, int *, uschar *, BOOL);
+extern BOOL    cleanup_environment(void);
 extern uschar *cutthrough_finaldot(void);
 extern BOOL    cutthrough_flush_send(void);
 extern BOOL    cutthrough_headers_send(void);
@@ -408,6 +409,7 @@ extern uschar *string_append_listele(uschar *, uschar, const uschar *);
 extern uschar *string_append_listele_n(uschar *, uschar, const uschar *, unsigned);
 extern uschar *string_base62(unsigned long int);
 extern uschar *string_cat(uschar *, int *, int *, const uschar *, int);
+extern int     string_compare_by_pointer(const uschar **, const uschar **);
 extern uschar *string_copy_dnsdomain(uschar *);
 extern uschar *string_copy_malloc(const uschar *);
 extern uschar *string_copylc(const uschar *);
diff --git a/src/src/globals.c b/src/src/globals.c
index 66baffe45..1dbc015f0 100644
--- a/src/src/globals.c
+++ b/src/src/globals.c
@@ -320,6 +320,7 @@ BOOL    active_local_from_check = FALSE;
 BOOL    active_local_sender_retain = FALSE;
 int     body_8bitmime = 0;
 BOOL    accept_8bitmime        = TRUE; /* deliberately not RFC compliant */
+uschar *add_environment        = NULL;
 address_item  *addr_duplicate  = NULL;
 
 address_item address_defaults = {
@@ -789,6 +790,8 @@ uschar *iterate_item           = NULL;
 
 int     journal_fd             = -1;
 
+uschar *keep_environment       = NULL;
+
 int     keep_malformed         = 4*24*60*60;    /* 4 days */
 
 uschar *eldap_dn               = NULL;
diff --git a/src/src/globals.h b/src/src/globals.h
index ab03302bb..f3e884b8e 100644
--- a/src/src/globals.h
+++ b/src/src/globals.h
@@ -156,6 +156,7 @@ extern const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
 /* General global variables */
 
 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */
+extern uschar *add_environment;        /* List of environment variables to add */
 extern int     body_8bitmime;          /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
 extern header_line *acl_added_headers; /* Headers added by an ACL */
 extern tree_node *acl_anchor;          /* Tree of named ACLs */
@@ -512,6 +513,7 @@ extern uschar *iterate_item;           /* Item from iterate list */
 
 extern int     journal_fd;             /* Fd for journal file */
 
+extern uschar *keep_environment;       /* Whitelist for environment variables */
 extern int     keep_malformed;         /* Time to keep malformed messages */
 
 extern uschar *eldap_dn;               /* Where LDAP DNs are left */
diff --git a/src/src/readconf.c b/src/src/readconf.c
index 8a62d0245..9f6954cf0 100644
--- a/src/src/readconf.c
+++ b/src/src/readconf.c
@@ -165,6 +165,7 @@ static optionlist optionlist_config[] = {
   { "acl_smtp_starttls",        opt_stringptr,   &acl_smtp_starttls },
 #endif
   { "acl_smtp_vrfy",            opt_stringptr,   &acl_smtp_vrfy },
+  { "add_environment",          opt_stringptr,   &add_environment },
   { "admin_groups",             opt_gidlist,     &admin_groups },
   { "allow_domain_literals",    opt_bool,        &allow_domain_literals },
   { "allow_mx_to_ip",           opt_bool,        &allow_mx_to_ip },
@@ -279,6 +280,7 @@ static optionlist optionlist_config[] = {
   { "ignore_bounce_errors_after", opt_time,      &ignore_bounce_errors_after },
   { "ignore_fromline_hosts",    opt_stringptr,   &ignore_fromline_hosts },
   { "ignore_fromline_local",    opt_bool,        &ignore_fromline_local },
+  { "keep_environment",         opt_stringptr,   &keep_environment },
   { "keep_malformed",           opt_time,        &keep_malformed },
 #ifdef LOOKUP_LDAP
   { "ldap_ca_cert_dir",         opt_stringptr,   &eldap_ca_cert_dir },
@@ -2522,6 +2524,7 @@ second argument is NULL. There are some special values:
   macro_list         print a list of macro names
   +name              print a named list item
   local_scan         print the local_scan options
+  environment        print the used execution environment
 
 If the second argument is not NULL, it must be one of "router", "transport",
 "authenticator" or "macro" in which case the first argument identifies the
@@ -2663,6 +2666,25 @@ if (type == NULL)
     names_only = TRUE;
     }
 
+  else if (Ustrcmp(name, "environment") == 0)
+    {
+    if (environ)
+      {
+      uschar **p;
+      size_t n;
+      for (p = USS environ; *p; p++) ;
+      n = p - USS environ;
+      qsort(environ, p - USS environ, sizeof(*p), (__compar_fn_t) string_compare_by_pointer);
+
+      for (p = USS environ; *p; p++)
+        {
+        if (no_labels) *(Ustrchr(*p, '=')) = '\0';
+        puts(*p);
+        }
+      }
+    return;
+    }
+
   else
     {
     print_ol(find_option(name, optionlist_config, optionlist_config_size),
@@ -2976,6 +2998,15 @@ const uschar *list = config_main_filelist;
 while((filename = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
        != NULL)
   {
+
+  /* To avoid confusion: Exim changes to / at the very beginning and
+   * and to $spool_directory later. */
+  if (filename[0] != '/')
+    {
+    fprintf(stderr, "-C %s: only absolute names are allowed\n", filename);
+    exit(EXIT_FAILURE);
+  }
+
   /* Cut out all the fancy processing unless specifically wanted */
 
   #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID)
@@ -3421,6 +3452,11 @@ if (gnutls_require_kx || gnutls_require_mac || gnutls_require_proto)
       " gnutls_require_kx, gnutls_require_mac and gnutls_require_protocols"
       " are obsolete\n");
 #endif	/*SUPPORT_TLS*/
+
+if ((!add_environment || *add_environment == '\0') && !keep_environment)
+  log_write(0, LOG_MAIN,
+      "WARNING: purging the environment.\n"
+      " Suggested action: use keep_environment and add_environment.\n");
 }
 
 
diff --git a/src/src/string.c b/src/src/string.c
index a3fbc4ea5..b7e7db487 100644
--- a/src/src/string.c
+++ b/src/src/string.c
@@ -1706,6 +1706,17 @@ return yield;
 #endif  /* COMPILE_UTILITY */
 
 
+#ifndef COMPILE_UTILITY
+/* qsort(3), currently used to sort the environment variables
+for -bP environment output, needs a function to compare two pointers to string
+pointers. Here it is. */
+
+int
+string_compare_by_pointer(const uschar **a, const uschar **b)
+{
+return Ustrcmp(CUS *a, CUS *b);
+}
+#endif /* COMPILE_UTILITY */
 
 
 
diff --git a/src/src/tls-openssl.c b/src/src/tls-openssl.c
index e1dcd77bc..01394c58d 100644
--- a/src/src/tls-openssl.c
+++ b/src/src/tls-openssl.c
@@ -855,7 +855,7 @@ bad:
     {
     extern char ** environ;
     uschar ** p;
-    for (p = USS environ; *p != NULL; p++)
+    if (environ) for (p = USS environ; *p != NULL; p++)
       if (Ustrncmp(*p, "EXIM_TESTHARNESS_DISABLE_OCSPVALIDITYCHECK", 42) == 0)
 	{
 	DEBUG(D_tls) debug_printf("Supplying known bad OCSP response\n");
diff --git a/test/confs/0000 b/test/confs/0000
index 25474a063..226ffc3f0 100644
--- a/test/confs/0000
+++ b/test/confs/0000
@@ -3,10 +3,10 @@
 # This configuration is used when the test script is finding out what features
 # are in the Exim binary. It needs to discover where the test suite's spool
 # directory is going to be.
-
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
 gecos_pattern = ""
 gecos_name = CALLER_NAME
+keep_environment =
 
 # End
diff --git a/test/confs/0001 b/test/confs/0001
index ab9ad45f2..9d711a2d1 100644
--- a/test/confs/0001
+++ b/test/confs/0001
@@ -5,6 +5,7 @@
 # mess up the creation of the spool directory etc.
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0002 b/test/confs/0002
index a6a1581d9..819287dd5 100644
--- a/test/confs/0002
+++ b/test/confs/0002
@@ -4,6 +4,7 @@ LENCHECK=
 PTBC=
 
 exim_path = EXIM_PATH
+keep_environment = USER
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0003 b/test/confs/0003
index 5c1382c7c..048856789 100644
--- a/test/confs/0003
+++ b/test/confs/0003
@@ -1,6 +1,7 @@
 # Exim test configuration 0003
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0004 b/test/confs/0004
index 5db3d6a2a..5af05e39d 100644
--- a/test/confs/0004
+++ b/test/confs/0004
@@ -1,6 +1,7 @@
 # Exim test configuration 0004
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0005 b/test/confs/0005
index f7d5b8027..0e096d8dc 100644
--- a/test/confs/0005
+++ b/test/confs/0005
@@ -1,6 +1,7 @@
 # Exim test configuration 0005
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0006 b/test/confs/0006
index e85bb4ec4..fdb6c228d 100644
--- a/test/confs/0006
+++ b/test/confs/0006
@@ -1,6 +1,7 @@
 # Exim test configuration 0006
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0007 b/test/confs/0007
index 5e01e1de2..30e534cd5 100644
--- a/test/confs/0007
+++ b/test/confs/0007
@@ -1,6 +1,7 @@
 # Exim test configuration 0007
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0008 b/test/confs/0008
index bf2d5b0ea..91290b74e 100644
--- a/test/confs/0008
+++ b/test/confs/0008
@@ -1,6 +1,7 @@
 # Exim test configuration 0008
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0009 b/test/confs/0009
index 2049f10e1..271e3d011 100644
--- a/test/confs/0009
+++ b/test/confs/0009
@@ -1,6 +1,7 @@
 # Exim test configuration 0009
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0010 b/test/confs/0010
index 466b97c35..8b9b43e53 100644
--- a/test/confs/0010
+++ b/test/confs/0010
@@ -1,6 +1,7 @@
 # Exim test configuration 0010
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0011 b/test/confs/0011
index 36aa77762..11852d609 100644
--- a/test/confs/0011
+++ b/test/confs/0011
@@ -1,6 +1,7 @@
 # Exim test configuration 0011
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0012 b/test/confs/0012
index f554c9f15..b043b3036 100644
--- a/test/confs/0012
+++ b/test/confs/0012
@@ -1,6 +1,7 @@
 # Exim test configuration 0012
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0013 b/test/confs/0013
index 08f976a25..0241662bb 100644
--- a/test/confs/0013
+++ b/test/confs/0013
@@ -1,6 +1,7 @@
 # Exim test configuration 0013
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/0014 b/test/confs/0014
index 9785f5fe1..b9e5222b9 100644
--- a/test/confs/0014
+++ b/test/confs/0014
@@ -1,6 +1,7 @@
 # Exim test configuration 0014
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0015 b/test/confs/0015
index e5637556b..a41692d19 100644
--- a/test/confs/0015
+++ b/test/confs/0015
@@ -1,6 +1,7 @@
 # Exim test configuration 0015
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0016 b/test/confs/0016
index 5d9d99fdb..eaecfe576 100644
--- a/test/confs/0016
+++ b/test/confs/0016
@@ -1,6 +1,7 @@
 # Exim test configuration 0016
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0017 b/test/confs/0017
index 9a9c2003d..76922322c 100644
--- a/test/confs/0017
+++ b/test/confs/0017
@@ -1,6 +1,7 @@
 # Exim test configuration 0017
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0018 b/test/confs/0018
index 170a4c1c2..24e9ae3ac 100644
--- a/test/confs/0018
+++ b/test/confs/0018
@@ -1,6 +1,7 @@
 # Exim test configuration 0018
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0019 b/test/confs/0019
index 6143a4d22..4fcf13d80 100644
--- a/test/confs/0019
+++ b/test/confs/0019
@@ -1,6 +1,7 @@
 # Exim test configuration 2409
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0020 b/test/confs/0020
index 14fadcd77..e0c99ecd2 100644
--- a/test/confs/0020
+++ b/test/confs/0020
@@ -1,6 +1,7 @@
 # Exim test configuration 0020
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0021 b/test/confs/0021
index 96dccd4af..81da0554a 100644
--- a/test/confs/0021
+++ b/test/confs/0021
@@ -4,6 +4,7 @@ SERVER=
 BR=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0022 b/test/confs/0022
index 38a844cc9..1415a505b 100644
--- a/test/confs/0022
+++ b/test/confs/0022
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0023 b/test/confs/0023
index 2ee1d538b..020a1459a 100644
--- a/test/confs/0023
+++ b/test/confs/0023
@@ -3,6 +3,7 @@
 LOG_SELECTOR=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0024 b/test/confs/0024
index a70197579..d62fb49b3 100644
--- a/test/confs/0024
+++ b/test/confs/0024
@@ -1,6 +1,7 @@
 # Exim test configuration 0024
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0025 b/test/confs/0025
index f17e0d5b2..1bae53495 100644
--- a/test/confs/0025
+++ b/test/confs/0025
@@ -1,6 +1,7 @@
 # Exim test configuration 0025
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0026 b/test/confs/0026
index d9c939d58..af2661671 100644
--- a/test/confs/0026
+++ b/test/confs/0026
@@ -1,6 +1,7 @@
 # Exim test configuration 0026
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0027 b/test/confs/0027
index 36116e863..ae1ff56cb 100644
--- a/test/confs/0027
+++ b/test/confs/0027
@@ -1,6 +1,7 @@
 # Exim test configuration 0027
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0028 b/test/confs/0028
index 23d6c935d..7ece2503f 100644
--- a/test/confs/0028
+++ b/test/confs/0028
@@ -1,6 +1,7 @@
 # Exim test configuration 0028
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0029 b/test/confs/0029
index 353415c08..a8d90ccde 100644
--- a/test/confs/0029
+++ b/test/confs/0029
@@ -1,6 +1,7 @@
 # Exim test configuration 0029
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0030 b/test/confs/0030
index c2ba7ab4f..7f867c91e 100644
--- a/test/confs/0030
+++ b/test/confs/0030
@@ -1,6 +1,7 @@
 # Exim test configuration 0030
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0031 b/test/confs/0031
index d4452ac3a..0d21d1889 100644
--- a/test/confs/0031
+++ b/test/confs/0031
@@ -1,6 +1,7 @@
 # Exim test configuration 0031
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0032 b/test/confs/0032
index 9d2a0255b..b8dfb967b 100644
--- a/test/confs/0032
+++ b/test/confs/0032
@@ -1,6 +1,7 @@
 # Exim test configuration 0032
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0033 b/test/confs/0033
index aef4591e9..ee720b2c1 100644
--- a/test/confs/0033
+++ b/test/confs/0033
@@ -1,6 +1,7 @@
 # Exim test configuration 0033
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0034 b/test/confs/0034
index 8317a0cd2..8ccabc8f8 100644
--- a/test/confs/0034
+++ b/test/confs/0034
@@ -1,6 +1,7 @@
 # Exim test configuration 0034
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0035 b/test/confs/0035
index a591b7521..b0e44fd80 100644
--- a/test/confs/0035
+++ b/test/confs/0035
@@ -4,6 +4,7 @@ SERVER=
 SUBMISSION_OPTIONS=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0036 b/test/confs/0036
index 218de7b4c..93dea8c7b 100644
--- a/test/confs/0036
+++ b/test/confs/0036
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0037 b/test/confs/0037
index 84385f07a..402cf4fd5 100644
--- a/test/confs/0037
+++ b/test/confs/0037
@@ -3,6 +3,7 @@
 FILTER_PREPEND_HOME=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0038 b/test/confs/0038
index 6c4c332ae..b093d7abd 100644
--- a/test/confs/0038
+++ b/test/confs/0038
@@ -5,6 +5,7 @@ DRATELIMIT=0/1h/per_byte/strict
 ACLRCPT=check_rcpt
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0039 b/test/confs/0039
index 36a7d509b..81c9a5a29 100644
--- a/test/confs/0039
+++ b/test/confs/0039
@@ -3,6 +3,7 @@
 QDG=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0040 b/test/confs/0040
index c686bcc02..1c94ff8bf 100644
--- a/test/confs/0040
+++ b/test/confs/0040
@@ -1,6 +1,7 @@
 # Exim test configuration 0040
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0041 b/test/confs/0041
index 996e322e7..d20686f40 100644
--- a/test/confs/0041
+++ b/test/confs/0041
@@ -1,6 +1,7 @@
 # Exim test configuration 0041
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0042 b/test/confs/0042
index 8a3847420..f24e2e8c1 100644
--- a/test/confs/0042
+++ b/test/confs/0042
@@ -1,6 +1,7 @@
 # Exim test configuration 0042
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0043 b/test/confs/0043
index 301bee438..b4cbc9593 100644
--- a/test/confs/0043
+++ b/test/confs/0043
@@ -1,6 +1,7 @@
 # Exim test configuration 0043
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0044 b/test/confs/0044
index 922944341..8cdd80368 100644
--- a/test/confs/0044
+++ b/test/confs/0044
@@ -1,6 +1,7 @@
 # Exim test configuration 0044
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0045 b/test/confs/0045
index f60aec0ec..862ca6385 100644
--- a/test/confs/0045
+++ b/test/confs/0045
@@ -1,6 +1,7 @@
 # Exim test configuration 0045
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0046 b/test/confs/0046
index 3c70acc52..2b9a51ccc 100644
--- a/test/confs/0046
+++ b/test/confs/0046
@@ -3,6 +3,7 @@
 NL=FALSE
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0047 b/test/confs/0047
index 1e59305b6..1bab20b48 100644
--- a/test/confs/0047
+++ b/test/confs/0047
@@ -1,6 +1,7 @@
 # Exim test configuration 0047
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0048 b/test/confs/0048
index 374dbaf88..b6e1c5f13 100644
--- a/test/confs/0048
+++ b/test/confs/0048
@@ -3,6 +3,7 @@
 MESSAGE_LOGS = true
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0049 b/test/confs/0049
index e2b7279e0..c35c3b276 100644
--- a/test/confs/0049
+++ b/test/confs/0049
@@ -1,6 +1,7 @@
 # Exim test configuration 0049
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0050 b/test/confs/0050
index 8bcfdbab0..c56849fbb 100644
--- a/test/confs/0050
+++ b/test/confs/0050
@@ -1,6 +1,7 @@
 # Exim test configuration 0050
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0051 b/test/confs/0051
index 8e11e7177..588c0bebf 100644
--- a/test/confs/0051
+++ b/test/confs/0051
@@ -1,6 +1,7 @@
 # Exim test configuration 0051
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0052 b/test/confs/0052
index 34c05989b..526530fca 100644
--- a/test/confs/0052
+++ b/test/confs/0052
@@ -1,6 +1,7 @@
 # Exim test configuration 0052
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0053 b/test/confs/0053
index 646eee96f..1c8b2a7d5 100644
--- a/test/confs/0053
+++ b/test/confs/0053
@@ -1,6 +1,7 @@
 # Exim test configuration 0053
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0054 b/test/confs/0054
index 1a0ddd3c6..ea7f571e8 100644
--- a/test/confs/0054
+++ b/test/confs/0054
@@ -1,6 +1,7 @@
 # Exim test configuration 0054
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0055 b/test/confs/0055
index 9f1b0087c..44e1b30ef 100644
--- a/test/confs/0055
+++ b/test/confs/0055
@@ -1,6 +1,7 @@
 # Exim test configuration 0055
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0056 b/test/confs/0056
index 51fa53b27..36e79b5c0 100644
--- a/test/confs/0056
+++ b/test/confs/0056
@@ -1,6 +1,7 @@
 # Exim test configuration 0056
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0057 b/test/confs/0057
index 37bb1987c..2c0c0629b 100644
--- a/test/confs/0057
+++ b/test/confs/0057
@@ -1,6 +1,7 @@
 # Exim test configuration 0057
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0058 b/test/confs/0058
index f095f3713..a9889d945 100644
--- a/test/confs/0058
+++ b/test/confs/0058
@@ -1,6 +1,7 @@
 # Exim test configuration 0058
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0059 b/test/confs/0059
index b21c5cab5..3a34afb36 100644
--- a/test/confs/0059
+++ b/test/confs/0059
@@ -1,6 +1,7 @@
 # Exim test configuration 0059
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0060 b/test/confs/0060
index 0bf8bc4d6..97b727cc1 100644
--- a/test/confs/0060
+++ b/test/confs/0060
@@ -1,6 +1,7 @@
 # Exim test configuration 0060
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0061 b/test/confs/0061
index 84d41498b..f0fd386e4 100644
--- a/test/confs/0061
+++ b/test/confs/0061
@@ -1,6 +1,7 @@
 # Exim test configuration 0061
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = ten-1.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0062 b/test/confs/0062
index 9becb261f..b9b830d2f 100644
--- a/test/confs/0062
+++ b/test/confs/0062
@@ -1,6 +1,7 @@
 # Exim test configuration 0062
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0063 b/test/confs/0063
index d45c79cef..3903ed1e9 100644
--- a/test/confs/0063
+++ b/test/confs/0063
@@ -1,6 +1,7 @@
 # Exim test configuration 0063
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0064 b/test/confs/0064
index d2de32529..49c03ebc7 100644
--- a/test/confs/0064
+++ b/test/confs/0064
@@ -1,6 +1,7 @@
 # Exim test configuration 0064
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0065 b/test/confs/0065
index 0f18c5ebb..743ebe01d 100644
--- a/test/confs/0065
+++ b/test/confs/0065
@@ -1,6 +1,7 @@
 # Exim test configuration 0065
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0066 b/test/confs/0066
index 8143b632e..c5946ffc1 100644
--- a/test/confs/0066
+++ b/test/confs/0066
@@ -1,6 +1,7 @@
 # Exim test configuration 0066
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0067 b/test/confs/0067
index 4d53f3a7e..a06137dda 100644
--- a/test/confs/0067
+++ b/test/confs/0067
@@ -1,6 +1,7 @@
 # Exim test configuration 0067
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0068 b/test/confs/0068
index bc3e88d23..40b04c45e 100644
--- a/test/confs/0068
+++ b/test/confs/0068
@@ -1,6 +1,7 @@
 # Exim test configuration 0068
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0069 b/test/confs/0069
index 0c28c6484..1e3afaa88 100644
--- a/test/confs/0069
+++ b/test/confs/0069
@@ -3,6 +3,7 @@
 LOG_SELECTOR=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0070 b/test/confs/0070
index 768f7d614..c008fdc0d 100644
--- a/test/confs/0070
+++ b/test/confs/0070
@@ -3,6 +3,7 @@
 HVH=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0071 b/test/confs/0071
index 749781c78..b0c491099 100644
--- a/test/confs/0071
+++ b/test/confs/0071
@@ -1,6 +1,7 @@
 # Exim test configuration 0071
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0072 b/test/confs/0072
index 110d3b1a9..db70561d7 100644
--- a/test/confs/0072
+++ b/test/confs/0072
@@ -5,6 +5,7 @@ ONLY=
 RETURN=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0073 b/test/confs/0073
index b39477878..1f50bd0eb 100644
--- a/test/confs/0073
+++ b/test/confs/0073
@@ -1,6 +1,7 @@
 # Exim test configuration 0073
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0074 b/test/confs/0074
index 515330050..a5c95b8b5 100644
--- a/test/confs/0074
+++ b/test/confs/0074
@@ -1,6 +1,7 @@
 # Exim test configuration 0074
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0075 b/test/confs/0075
index 5ed1218ce..8347a6308 100644
--- a/test/confs/0075
+++ b/test/confs/0075
@@ -1,6 +1,7 @@
 # Exim test configuration 0075
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0076 b/test/confs/0076
index e95ee98da..0e9034c88 100644
--- a/test/confs/0076
+++ b/test/confs/0076
@@ -1,6 +1,7 @@
 # Exim test configuration 0076
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0077 b/test/confs/0077
index aef2fd685..2f26d9e8d 100644
--- a/test/confs/0077
+++ b/test/confs/0077
@@ -1,6 +1,7 @@
 # Exim test configuration 0077
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0078 b/test/confs/0078
index a9e660a71..9212aca78 100644
--- a/test/confs/0078
+++ b/test/confs/0078
@@ -1,6 +1,7 @@
 # Exim test configuration 0078
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0079 b/test/confs/0079
index 522c9053b..7263d0a54 100644
--- a/test/confs/0079
+++ b/test/confs/0079
@@ -1,6 +1,7 @@
 # Exim test configuration 0079
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0080 b/test/confs/0080
index cb83d3890..64efa8e7f 100644
--- a/test/confs/0080
+++ b/test/confs/0080
@@ -1,6 +1,7 @@
 # Exim test configuration 0080
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0081 b/test/confs/0081
index 4bca680a4..0bc2ca51a 100644
--- a/test/confs/0081
+++ b/test/confs/0081
@@ -1,6 +1,7 @@
 # Exim test configuration 0081
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0082 b/test/confs/0082
index b6fe0f453..894c81001 100644
--- a/test/confs/0082
+++ b/test/confs/0082
@@ -1,6 +1,7 @@
 # Exim test configuration 0082
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0083 b/test/confs/0083
index 6cbb42e23..8af77d3c3 100644
--- a/test/confs/0083
+++ b/test/confs/0083
@@ -1,6 +1,7 @@
 # Exim test configuration 0083
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0084 b/test/confs/0084
index 30a8cccb8..8601932ed 100644
--- a/test/confs/0084
+++ b/test/confs/0084
@@ -1,6 +1,7 @@
 # Exim test configuration 0084
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0085 b/test/confs/0085
index 59bd0eea4..3502a04a7 100644
--- a/test/confs/0085
+++ b/test/confs/0085
@@ -1,6 +1,7 @@
 # Exim test configuration 0085
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0086 b/test/confs/0086
index 2bf285a97..766de17e1 100644
--- a/test/confs/0086
+++ b/test/confs/0086
@@ -1,6 +1,7 @@
 # Exim test configuration 0086
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0087 b/test/confs/0087
index 71cdc701c..c0c2b4400 100644
--- a/test/confs/0087
+++ b/test/confs/0087
@@ -1,6 +1,7 @@
 # Exim test configuration 0087
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0088 b/test/confs/0088
index 96aaca6e7..9cfb4ced2 100644
--- a/test/confs/0088
+++ b/test/confs/0088
@@ -1,6 +1,7 @@
 # Exim test configuration 0088
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0089 b/test/confs/0089
index 3b7f145c9..6b9dc0489 100644
--- a/test/confs/0089
+++ b/test/confs/0089
@@ -1,6 +1,7 @@
 # Exim test configuration 0089
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0090 b/test/confs/0090
index ec524c83f..0ca4a81f5 100644
--- a/test/confs/0090
+++ b/test/confs/0090
@@ -1,6 +1,7 @@
 # Exim test configuration 0090
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0091 b/test/confs/0091
index c65a94799..a276c93ea 100644
--- a/test/confs/0091
+++ b/test/confs/0091
@@ -1,6 +1,7 @@
 # Exim test configuration 0091
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0092 b/test/confs/0092
index 62157cb33..c4222eb72 100644
--- a/test/confs/0092
+++ b/test/confs/0092
@@ -8,6 +8,7 @@ domainlist local_domains = test.ex : *.test.ex
 domainlist relay_domains = test.ex
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0093 b/test/confs/0093
index c8124fa82..05cd44942 100644
--- a/test/confs/0093
+++ b/test/confs/0093
@@ -1,6 +1,7 @@
 # Exim test configuration 0093
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0094 b/test/confs/0094
index fd25acc31..2bb4c30cd 100644
--- a/test/confs/0094
+++ b/test/confs/0094
@@ -1,6 +1,7 @@
 # Exim test configuration 0094
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0095 b/test/confs/0095
index f19bec7c1..666a6c5d0 100644
--- a/test/confs/0095
+++ b/test/confs/0095
@@ -4,6 +4,7 @@ ERT=
 QWM=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0096 b/test/confs/0096
index 98ac5f85a..5abcfc97f 100644
--- a/test/confs/0096
+++ b/test/confs/0096
@@ -1,6 +1,7 @@
 # Exim test configuration 0096
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0097 b/test/confs/0097
index 9c4f7d931..d8b5f2933 100644
--- a/test/confs/0097
+++ b/test/confs/0097
@@ -1,6 +1,7 @@
 # Exim test configuration 0097
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0098 b/test/confs/0098
index f23da44c6..4cab76fac 100644
--- a/test/confs/0098
+++ b/test/confs/0098
@@ -3,6 +3,7 @@
 WMF=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0099 b/test/confs/0099
index c4e1a8339..b5cce9c69 100644
--- a/test/confs/0099
+++ b/test/confs/0099
@@ -3,6 +3,7 @@
 RETRY =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0100 b/test/confs/0100
index 6d78adf06..c603215df 100644
--- a/test/confs/0100
+++ b/test/confs/0100
@@ -1,6 +1,7 @@
 # Exim test configuration 0100
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0101 b/test/confs/0101
index ccee4194d..8e650b7bf 100644
--- a/test/confs/0101
+++ b/test/confs/0101
@@ -1,6 +1,7 @@
 # Exim test configuration 0101
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0102 b/test/confs/0102
index 3b3e3d52e..21f545de7 100644
--- a/test/confs/0102
+++ b/test/confs/0102
@@ -1,6 +1,7 @@
 # Exim test configuration 0102
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0103 b/test/confs/0103
index bff294a96..b887cda16 100644
--- a/test/confs/0103
+++ b/test/confs/0103
@@ -1,6 +1,7 @@
 # Exim test configuration 0103
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0104 b/test/confs/0104
index e6c15b8c8..d1b9b296e 100644
--- a/test/confs/0104
+++ b/test/confs/0104
@@ -1,6 +1,7 @@
 # Exim test configuration 0104
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0105 b/test/confs/0105
index 73550b395..a33e48338 100644
--- a/test/confs/0105
+++ b/test/confs/0105
@@ -1,6 +1,7 @@
 # Exim test configuration 0105
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0106 b/test/confs/0106
index bd7cb84f8..ab432cfe3 100644
--- a/test/confs/0106
+++ b/test/confs/0106
@@ -1,6 +1,7 @@
 # Exim test configuration 0106
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0107 b/test/confs/0107
index 6fd34ce7c..ad2bf74f5 100644
--- a/test/confs/0107
+++ b/test/confs/0107
@@ -1,6 +1,7 @@
 # Exim test configuration 0107
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0108 b/test/confs/0108
index bbcb3e57f..deca61fc7 100644
--- a/test/confs/0108
+++ b/test/confs/0108
@@ -1,6 +1,7 @@
 # Exim test configuration 0108
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0109 b/test/confs/0109
index d42a79d58..d7c2435d5 100644
--- a/test/confs/0109
+++ b/test/confs/0109
@@ -1,6 +1,7 @@
 # Exim test configuration 0109
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0110 b/test/confs/0110
index b02cf5929..a4a707218 100644
--- a/test/confs/0110
+++ b/test/confs/0110
@@ -1,6 +1,7 @@
 # Exim test configuration 0110
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0111 b/test/confs/0111
index cb95f577f..252131a0a 100644
--- a/test/confs/0111
+++ b/test/confs/0111
@@ -1,6 +1,7 @@
 # Exim test configuration 0111
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0112 b/test/confs/0112
index 2b3b7bd4a..d07e2e15e 100644
--- a/test/confs/0112
+++ b/test/confs/0112
@@ -1,6 +1,7 @@
 # Exim test configuration 0112
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0113 b/test/confs/0113
index 0d1240e29..dc164621a 100644
--- a/test/confs/0113
+++ b/test/confs/0113
@@ -1,6 +1,7 @@
 # Exim test configuration 0113
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0114 b/test/confs/0114
index 8a4595f22..1b23d2e13 100644
--- a/test/confs/0114
+++ b/test/confs/0114
@@ -1,6 +1,7 @@
 # Exim test configuration 0114
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0115 b/test/confs/0115
index 3f5fb8b4d..8b113204b 100644
--- a/test/confs/0115
+++ b/test/confs/0115
@@ -1,6 +1,7 @@
 # Exim test configuration 0115
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0116 b/test/confs/0116
index 41aaf0d33..fb7fe600a 100644
--- a/test/confs/0116
+++ b/test/confs/0116
@@ -1,6 +1,7 @@
 # Exim test configuration 0116
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0117 b/test/confs/0117
index 11b940984..4fd237279 100644
--- a/test/confs/0117
+++ b/test/confs/0117
@@ -1,6 +1,7 @@
 # Exim test configuration 0117
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0118 b/test/confs/0118
index bf517b14d..4e08d55ab 100644
--- a/test/confs/0118
+++ b/test/confs/0118
@@ -1,6 +1,7 @@
 # Exim test configuration 0118
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0119 b/test/confs/0119
index a25646b5e..e8187e4e5 100644
--- a/test/confs/0119
+++ b/test/confs/0119
@@ -1,6 +1,7 @@
 # Exim test configuration 0119
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0120 b/test/confs/0120
index 8fd162d09..94e95e1ad 100644
--- a/test/confs/0120
+++ b/test/confs/0120
@@ -1,6 +1,7 @@
 # Exim test configuration 0120
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0121 b/test/confs/0121
index 897c90a92..394282862 100644
--- a/test/confs/0121
+++ b/test/confs/0121
@@ -1,6 +1,7 @@
 # Exim test configuration 0121
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0122 b/test/confs/0122
index b8bc34213..dbe4f83b2 100644
--- a/test/confs/0122
+++ b/test/confs/0122
@@ -1,6 +1,7 @@
 # Exim test configuration 0122
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0123 b/test/confs/0123
index df35baf3d..3f8c21dcc 100644
--- a/test/confs/0123
+++ b/test/confs/0123
@@ -1,6 +1,7 @@
 # Exim test configuration 0123
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0124 b/test/confs/0124
index 5f156e1f6..39f44f798 100644
--- a/test/confs/0124
+++ b/test/confs/0124
@@ -1,6 +1,7 @@
 # Exim test configuration 0124
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0125 b/test/confs/0125
index 3b74967be..65251fe68 100644
--- a/test/confs/0125
+++ b/test/confs/0125
@@ -1,6 +1,7 @@
 # Exim test configuration 0125
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0126 b/test/confs/0126
index 04583de9e..24cba5afa 100644
--- a/test/confs/0126
+++ b/test/confs/0126
@@ -1,6 +1,7 @@
 # Exim test configuration 0126
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0127 b/test/confs/0127
index 3e95cf8d1..afeca992c 100644
--- a/test/confs/0127
+++ b/test/confs/0127
@@ -1,6 +1,7 @@
 # Exim test configuration 0127
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0128 b/test/confs/0128
index 95271e30c..3818c0798 100644
--- a/test/confs/0128
+++ b/test/confs/0128
@@ -1,6 +1,7 @@
 # Exim test configuration 0128
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0129 b/test/confs/0129
index b03391476..0efc2ad17 100644
--- a/test/confs/0129
+++ b/test/confs/0129
@@ -1,6 +1,7 @@
 # Exim test configuration 0129
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0130 b/test/confs/0130
index 5ecdfc395..63d0ce270 100644
--- a/test/confs/0130
+++ b/test/confs/0130
@@ -1,6 +1,7 @@
 # Exim test configuration 0130
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0131 b/test/confs/0131
index 50ae1db14..0a1030198 100644
--- a/test/confs/0131
+++ b/test/confs/0131
@@ -1,6 +1,7 @@
 # Exim test configuration 0131
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0132 b/test/confs/0132
index 0ed262a73..ef67e13e9 100644
--- a/test/confs/0132
+++ b/test/confs/0132
@@ -1,6 +1,7 @@
 # Exim test configuration 0132
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0133 b/test/confs/0133
index c43202121..b796d0b60 100644
--- a/test/confs/0133
+++ b/test/confs/0133
@@ -1,6 +1,7 @@
 # Exim test configuration 0133
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0134 b/test/confs/0134
index 08519f38d..39c3eae78 100644
--- a/test/confs/0134
+++ b/test/confs/0134
@@ -1,6 +1,7 @@
 # Exim test configuration 0134
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0135 b/test/confs/0135
index 4cef8c451..9f5239b63 100644
--- a/test/confs/0135
+++ b/test/confs/0135
@@ -1,6 +1,7 @@
 # Exim test configuration 0135
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0136 b/test/confs/0136
index 014425213..d85dfd9be 100644
--- a/test/confs/0136
+++ b/test/confs/0136
@@ -3,6 +3,7 @@
 BRB=true
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0137 b/test/confs/0137
index 45f3c442a..50893c3f4 100644
--- a/test/confs/0137
+++ b/test/confs/0137
@@ -1,6 +1,7 @@
 # Exim test configuration 0137
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0138 b/test/confs/0138
index abe4665e4..c65fcd911 100644
--- a/test/confs/0138
+++ b/test/confs/0138
@@ -1,6 +1,7 @@
 # Exim test configuration 0138
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0139 b/test/confs/0139
index 3a10b713c..eb35cc9a3 100644
--- a/test/confs/0139
+++ b/test/confs/0139
@@ -1,6 +1,7 @@
 # Exim test configuration 0139
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0140 b/test/confs/0140
index e3d032431..2e965a90b 100644
--- a/test/confs/0140
+++ b/test/confs/0140
@@ -1,6 +1,7 @@
 # Exim test configuration 0140
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0141 b/test/confs/0141
index 275e7e3b6..e22e1e8d7 100644
--- a/test/confs/0141
+++ b/test/confs/0141
@@ -1,6 +1,7 @@
 # Exim test configuration 0141
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0142 b/test/confs/0142
index 672f0f4ec..0c216092d 100644
--- a/test/confs/0142
+++ b/test/confs/0142
@@ -1,6 +1,7 @@
 # Exim test configuration 0142
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0143 b/test/confs/0143
index e1dd55ffb..2ae02c8a3 100644
--- a/test/confs/0143
+++ b/test/confs/0143
@@ -1,6 +1,7 @@
 # Exim test configuration 0143
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0144 b/test/confs/0144
index 116416ec7..addfc0500 100644
--- a/test/confs/0144
+++ b/test/confs/0144
@@ -1,6 +1,7 @@
 # Exim test configuration 0144
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/0145 b/test/confs/0145
index 011b4c6d5..c9cb5b08b 100644
--- a/test/confs/0145
+++ b/test/confs/0145
@@ -1,6 +1,7 @@
 # Exim test configuration 0145
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/0146 b/test/confs/0146
index ae08e6ae2..38980f76c 100644
--- a/test/confs/0146
+++ b/test/confs/0146
@@ -1,6 +1,7 @@
 # Exim test configuration 0146
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/0147 b/test/confs/0147
index a7ad86bee..3159f15c6 100644
--- a/test/confs/0147
+++ b/test/confs/0147
@@ -7,6 +7,7 @@ ABCD_XYZ = abcdxyz
 ABCD=abcd + ABCD_XYZ
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/0148 b/test/confs/0148
index 6a2a2f1c6..285272251 100644
--- a/test/confs/0148
+++ b/test/confs/0148
@@ -1,6 +1,7 @@
 # Exim test configuration 0148
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/0149 b/test/confs/0149
index c652322c5..4bde6026f 100644
--- a/test/confs/0149
+++ b/test/confs/0149
@@ -1,6 +1,7 @@
 # Exim test configuration 0149
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/0150 b/test/confs/0150
index 3bdb03f64..6bc84b8d1 100644
--- a/test/confs/0150
+++ b/test/confs/0150
@@ -1,6 +1,7 @@
 # Exim test configuration 0150
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0151 b/test/confs/0151
index 7f514cd45..a0ff21549 100644
--- a/test/confs/0151
+++ b/test/confs/0151
@@ -1,6 +1,7 @@
 # Exim test configuration 0151
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0152 b/test/confs/0152
index 8272de7d4..2d95cf5ff 100644
--- a/test/confs/0152
+++ b/test/confs/0152
@@ -1,6 +1,7 @@
 # Exim test configuration 0152
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0153 b/test/confs/0153
index 0a4b448a6..b349e146b 100644
--- a/test/confs/0153
+++ b/test/confs/0153
@@ -1,6 +1,7 @@
 # Exim test configuration 0153
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0154 b/test/confs/0154
index 159d5e2f8..0427d4db0 100644
--- a/test/confs/0154
+++ b/test/confs/0154
@@ -1,6 +1,7 @@
 # Exim test configuration 0154
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0155 b/test/confs/0155
index cd8ee91ac..551b4c68e 100644
--- a/test/confs/0155
+++ b/test/confs/0155
@@ -1,6 +1,7 @@
 # Exim test configuration 0155
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0156 b/test/confs/0156
index fcf969a2c..c2d143e6c 100644
--- a/test/confs/0156
+++ b/test/confs/0156
@@ -1,6 +1,7 @@
 # Exim test configuration 0156
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0157 b/test/confs/0157
index 237896558..cf4d973c1 100644
--- a/test/confs/0157
+++ b/test/confs/0157
@@ -1,6 +1,7 @@
 # Exim test configuration 0157
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0158 b/test/confs/0158
index 06789cf36..04bcc7e86 100644
--- a/test/confs/0158
+++ b/test/confs/0158
@@ -1,6 +1,7 @@
 # Exim test configuration 0158
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0159 b/test/confs/0159
index 64be164a9..73c3d0d39 100644
--- a/test/confs/0159
+++ b/test/confs/0159
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0160 b/test/confs/0160
index 1edac2f4a..5ed39bb6f 100644
--- a/test/confs/0160
+++ b/test/confs/0160
@@ -1,6 +1,7 @@
 # Exim test configuration 0160
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0161 b/test/confs/0161
index e5409f011..038593363 100644
--- a/test/confs/0161
+++ b/test/confs/0161
@@ -1,6 +1,7 @@
 # Exim test configuration 0161
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0162 b/test/confs/0162
index 077b9a41d..a1190efe5 100644
--- a/test/confs/0162
+++ b/test/confs/0162
@@ -1,6 +1,7 @@
 # Exim test configuration 0162
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0163 b/test/confs/0163
index 4193741c2..829c481fc 100644
--- a/test/confs/0163
+++ b/test/confs/0163
@@ -1,6 +1,7 @@
 # Exim test configuration 0163
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0164 b/test/confs/0164
index 814ea8109..0eed31142 100644
--- a/test/confs/0164
+++ b/test/confs/0164
@@ -1,6 +1,7 @@
 # Exim test configuration 0164
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0165 b/test/confs/0165
index 5db2c0ae9..bcdc66dd2 100644
--- a/test/confs/0165
+++ b/test/confs/0165
@@ -1,6 +1,7 @@
 # Exim test configuration 0165
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0166 b/test/confs/0166
index c8c20315e..2a73e0c10 100644
--- a/test/confs/0166
+++ b/test/confs/0166
@@ -1,6 +1,7 @@
 # Exim test configuration 0166
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0167 b/test/confs/0167
index b74f1fa01..45e4ff23a 100644
--- a/test/confs/0167
+++ b/test/confs/0167
@@ -1,6 +1,7 @@
 # Exim test configuration 0167
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0168 b/test/confs/0168
index 01db84368..6ae4fc75d 100644
--- a/test/confs/0168
+++ b/test/confs/0168
@@ -1,6 +1,7 @@
 # Exim test configuration 0168
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0169 b/test/confs/0169
index 62504656f..9c6fcbe57 100644
--- a/test/confs/0169
+++ b/test/confs/0169
@@ -1,6 +1,7 @@
 # Exim test configuration 0169
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0170 b/test/confs/0170
index e1f773a09..6fabc8e53 100644
--- a/test/confs/0170
+++ b/test/confs/0170
@@ -1,6 +1,7 @@
 # Exim test configuration 0170
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0171 b/test/confs/0171
index 05b023abb..dec392544 100644
--- a/test/confs/0171
+++ b/test/confs/0171
@@ -1,6 +1,7 @@
 # Exim test configuration 0171
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0172 b/test/confs/0172
index ea4cc6059..f08a16701 100644
--- a/test/confs/0172
+++ b/test/confs/0172
@@ -1,6 +1,7 @@
 # Exim test configuration 0172
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0173 b/test/confs/0173
index ddde76cb4..d8fb3dbed 100644
--- a/test/confs/0173
+++ b/test/confs/0173
@@ -1,6 +1,7 @@
 # Exim test configuration 0173
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0174 b/test/confs/0174
index 31e11e8ab..038c73edc 100644
--- a/test/confs/0174
+++ b/test/confs/0174
@@ -1,6 +1,7 @@
 # Exim test configuration 0174
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0175 b/test/confs/0175
index 4f8be4fa5..a8d9819e1 100644
--- a/test/confs/0175
+++ b/test/confs/0175
@@ -1,6 +1,7 @@
 # Exim test configuration 0175
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0176 b/test/confs/0176
index 48bd6ec5d..4dc07d021 100644
--- a/test/confs/0176
+++ b/test/confs/0176
@@ -1,6 +1,7 @@
 # Exim test configuration 0176
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0177 b/test/confs/0177
index 4782202c4..ea299795f 100644
--- a/test/confs/0177
+++ b/test/confs/0177
@@ -1,6 +1,7 @@
 # Exim test configuration 0177
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0178 b/test/confs/0178
index 647f5f8eb..400e0ef9b 100644
--- a/test/confs/0178
+++ b/test/confs/0178
@@ -1,6 +1,7 @@
 # Exim test configuration 0178
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0179 b/test/confs/0179
index 39363d4ad..44f1aa30f 100644
--- a/test/confs/0179
+++ b/test/confs/0179
@@ -1,6 +1,7 @@
 # Exim test configuration 0179
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0180 b/test/confs/0180
index 4f291f492..868f7d7ab 100644
--- a/test/confs/0180
+++ b/test/confs/0180
@@ -3,6 +3,7 @@
 CSS=check_spool_space=100000000K
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0181 b/test/confs/0181
index a4e38dc78..445a077c9 100644
--- a/test/confs/0181
+++ b/test/confs/0181
@@ -1,6 +1,7 @@
 # Exim test configuration 0181
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0182 b/test/confs/0182
index 1f0890578..f404a87e0 100644
--- a/test/confs/0182
+++ b/test/confs/0182
@@ -1,6 +1,7 @@
 # Exim test configuration 0182
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0183 b/test/confs/0183
index 89b735a5e..afb69e4b1 100644
--- a/test/confs/0183
+++ b/test/confs/0183
@@ -1,6 +1,7 @@
 # Exim test configuration 0183
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0184 b/test/confs/0184
index 1cc0c7bc7..22e4dd686 100644
--- a/test/confs/0184
+++ b/test/confs/0184
@@ -1,6 +1,7 @@
 # Exim test configuration 0184
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0185 b/test/confs/0185
index d4a5dac1c..843ea7db2 100644
--- a/test/confs/0185
+++ b/test/confs/0185
@@ -1,6 +1,7 @@
 # Exim test configuration 0185
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0186 b/test/confs/0186
index e22f42647..2f6cadbd0 100644
--- a/test/confs/0186
+++ b/test/confs/0186
@@ -1,6 +1,7 @@
 # Exim test configuration 0186
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0187 b/test/confs/0187
index 9750ae090..bd55ec618 100644
--- a/test/confs/0187
+++ b/test/confs/0187
@@ -1,6 +1,7 @@
 # Exim test configuration 0187
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0188 b/test/confs/0188
index 8778e1420..881645217 100644
--- a/test/confs/0188
+++ b/test/confs/0188
@@ -1,6 +1,7 @@
 # Exim test configuration 0188
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0189 b/test/confs/0189
index fcf63ff02..11a4ac0c2 100644
--- a/test/confs/0189
+++ b/test/confs/0189
@@ -1,6 +1,7 @@
 # Exim test configuration 0189
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0190 b/test/confs/0190
index 6925a373b..29763a603 100644
--- a/test/confs/0190
+++ b/test/confs/0190
@@ -1,6 +1,7 @@
 # Exim test configuration 0190
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0191 b/test/confs/0191
index 0c7628ca2..bad03b130 100644
--- a/test/confs/0191
+++ b/test/confs/0191
@@ -1,6 +1,7 @@
 # Exim test configuration 0191
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0192 b/test/confs/0192
index 419bc6fb6..efc2f215b 100644
--- a/test/confs/0192
+++ b/test/confs/0192
@@ -1,6 +1,7 @@
 # Exim test configuration 0192
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0193 b/test/confs/0193
index e819e7066..095e7a384 100644
--- a/test/confs/0193
+++ b/test/confs/0193
@@ -1,6 +1,7 @@
 # Exim test configuration 0193
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0194 b/test/confs/0194
index 94f810f05..2b3d7f186 100644
--- a/test/confs/0194
+++ b/test/confs/0194
@@ -1,6 +1,7 @@
 # Exim test configuration 0194
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0195 b/test/confs/0195
index fd2e76782..30f766b0b 100644
--- a/test/confs/0195
+++ b/test/confs/0195
@@ -1,6 +1,7 @@
 # Exim test configuration 0195
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0196 b/test/confs/0196
index 522cd4bb1..28b515242 100644
--- a/test/confs/0196
+++ b/test/confs/0196
@@ -1,6 +1,7 @@
 # Exim test configuration 0196
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0197 b/test/confs/0197
index 96a8e0b8d..e4b458c95 100644
--- a/test/confs/0197
+++ b/test/confs/0197
@@ -4,6 +4,7 @@
 # and these settings.
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0198 b/test/confs/0198
index de7b1f3bb..3497339bf 100644
--- a/test/confs/0198
+++ b/test/confs/0198
@@ -1,6 +1,7 @@
 # Exim test configuration 0198
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0199 b/test/confs/0199
index 2d3f204c7..ac0974a8f 100644
--- a/test/confs/0199
+++ b/test/confs/0199
@@ -1,6 +1,7 @@
 # Exim test configuration 0199
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0200 b/test/confs/0200
index 9eccd234c..4ab511684 100644
--- a/test/confs/0200
+++ b/test/confs/0200
@@ -1,6 +1,7 @@
 # Exim test configuration 0200
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0201 b/test/confs/0201
index 69bb69b82..89b5db257 100644
--- a/test/confs/0201
+++ b/test/confs/0201
@@ -1,6 +1,7 @@
 # Exim test configuration 0201
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0202 b/test/confs/0202
index 77eab7f21..ffb745295 100644
--- a/test/confs/0202
+++ b/test/confs/0202
@@ -1,6 +1,7 @@
 # Exim test configuration 0202
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0203 b/test/confs/0203
index 64dd19c4c..6f4e9021e 100644
--- a/test/confs/0203
+++ b/test/confs/0203
@@ -1,6 +1,7 @@
 # Exim test configuration 0203
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0204 b/test/confs/0204
index a9ff5bbdd..4a05eae20 100644
--- a/test/confs/0204
+++ b/test/confs/0204
@@ -1,6 +1,7 @@
 # Exim test configuration 0204
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0205 b/test/confs/0205
index eeff8972f..712f37407 100644
--- a/test/confs/0205
+++ b/test/confs/0205
@@ -1,6 +1,7 @@
 # Exim test configuration 0205
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0206 b/test/confs/0206
index d42392ef4..532bee2cb 100644
--- a/test/confs/0206
+++ b/test/confs/0206
@@ -1,6 +1,7 @@
 # Exim test configuration 0206
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0207 b/test/confs/0207
index c8981ee76..6d0f12825 100644
--- a/test/confs/0207
+++ b/test/confs/0207
@@ -1,6 +1,7 @@
 # Exim test configuration 0207
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0208 b/test/confs/0208
index 1212564d6..c5ba31116 100644
--- a/test/confs/0208
+++ b/test/confs/0208
@@ -3,6 +3,7 @@
 MESSAGE_LOGS = true
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0209 b/test/confs/0209
index c8a473915..82c8be897 100644
--- a/test/confs/0209
+++ b/test/confs/0209
@@ -1,6 +1,7 @@
 # Exim test configuration 0209
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0210 b/test/confs/0210
index 9e709f761..b107d870b 100644
--- a/test/confs/0210
+++ b/test/confs/0210
@@ -1,6 +1,7 @@
 # Exim test configuration 0210
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0211 b/test/confs/0211
index 89e98a4ea..fdf66e078 100644
--- a/test/confs/0211
+++ b/test/confs/0211
@@ -1,6 +1,7 @@
 # Exim test configuration 0211
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0212 b/test/confs/0212
index 1d14d8972..44dfc6f1a 100644
--- a/test/confs/0212
+++ b/test/confs/0212
@@ -1,6 +1,7 @@
 # Exim test configuration 0212
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0213 b/test/confs/0213
index 226ade9ce..72e003c0c 100644
--- a/test/confs/0213
+++ b/test/confs/0213
@@ -1,6 +1,7 @@
 # Exim test configuration 0213
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0214 b/test/confs/0214
index baaa2c06e..a2c3cf896 100644
--- a/test/confs/0214
+++ b/test/confs/0214
@@ -1,6 +1,7 @@
 # Exim test configuration 0214
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0215 b/test/confs/0215
index 0109d89b6..28f3357f2 100644
--- a/test/confs/0215
+++ b/test/confs/0215
@@ -5,6 +5,7 @@ AUTHS=
 AUTHF=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0216 b/test/confs/0216
index 3250331b1..4f69c6b2b 100644
--- a/test/confs/0216
+++ b/test/confs/0216
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0217 b/test/confs/0217
index d1371dd10..4cdd8ea4b 100644
--- a/test/confs/0217
+++ b/test/confs/0217
@@ -3,6 +3,7 @@
 HAP=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0218 b/test/confs/0218
index 2a4bff68d..5c8e0224f 100644
--- a/test/confs/0218
+++ b/test/confs/0218
@@ -1,6 +1,7 @@
 # Exim test configuration 0218
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0219 b/test/confs/0219
index f3538a780..1f8973cac 100644
--- a/test/confs/0219
+++ b/test/confs/0219
@@ -1,6 +1,7 @@
 # Exim test configuration 0219
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0220 b/test/confs/0220
index 095d207e0..a6d3ef458 100644
--- a/test/confs/0220
+++ b/test/confs/0220
@@ -1,6 +1,7 @@
 # Exim test configuration 0220
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0221 b/test/confs/0221
index a28af6a16..bf6a8f66e 100644
--- a/test/confs/0221
+++ b/test/confs/0221
@@ -1,6 +1,7 @@
 # Exim test configuration 0221
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0222 b/test/confs/0222
index 412baf220..b5ac5250a 100644
--- a/test/confs/0222
+++ b/test/confs/0222
@@ -1,6 +1,7 @@
 # Exim test configuration 0222
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0223 b/test/confs/0223
index 93da92c5f..73b02acfc 100644
--- a/test/confs/0223
+++ b/test/confs/0223
@@ -1,6 +1,7 @@
 # Exim test configuration 0223
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0224 b/test/confs/0224
index 6b87aa682..56fc67824 100644
--- a/test/confs/0224
+++ b/test/confs/0224
@@ -1,6 +1,7 @@
 # Exim test configuration 0224
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0225 b/test/confs/0225
index 279b84a40..d5dca4d12 100644
--- a/test/confs/0225
+++ b/test/confs/0225
@@ -1,6 +1,7 @@
 # Exim test configuration 0225
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0226 b/test/confs/0226
index 9ebdb7917..3e2e1130e 100644
--- a/test/confs/0226
+++ b/test/confs/0226
@@ -1,6 +1,7 @@
 # Exim test configuration 0226
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0227 b/test/confs/0227
index adc942f06..6697ecb8c 100644
--- a/test/confs/0227
+++ b/test/confs/0227
@@ -1,6 +1,7 @@
 # Exim test configuration 0227
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0228 b/test/confs/0228
index c143f9bcf..2030db6fd 100644
--- a/test/confs/0228
+++ b/test/confs/0228
@@ -1,6 +1,7 @@
 # Exim test configuration 0228
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0229 b/test/confs/0229
index 151ed137c..0b4d0cece 100644
--- a/test/confs/0229
+++ b/test/confs/0229
@@ -1,6 +1,7 @@
 # Exim test configuration 0229
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0230 b/test/confs/0230
index 350a110a8..7701f268a 100644
--- a/test/confs/0230
+++ b/test/confs/0230
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0231 b/test/confs/0231
index beb9da51f..0844b160c 100644
--- a/test/confs/0231
+++ b/test/confs/0231
@@ -1,6 +1,7 @@
 # Exim test configuration 0231
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0232 b/test/confs/0232
index be4f39bf0..5d1f7aa9b 100644
--- a/test/confs/0232
+++ b/test/confs/0232
@@ -1,6 +1,7 @@
 # Exim test configuration 0232
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0233 b/test/confs/0233
index a96661a5f..204393db2 100644
--- a/test/confs/0233
+++ b/test/confs/0233
@@ -1,6 +1,7 @@
 # Exim test configuration 0233
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0234 b/test/confs/0234
index b94456cb4..ee4465464 100644
--- a/test/confs/0234
+++ b/test/confs/0234
@@ -1,6 +1,7 @@
 # Exim test configuration 0234
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0235 b/test/confs/0235
index ef6da69f6..c61e049ba 100644
--- a/test/confs/0235
+++ b/test/confs/0235
@@ -1,6 +1,7 @@
 # Exim test configuration 0235
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0236 b/test/confs/0236
index a6bd6750c..ed7b9851d 100644
--- a/test/confs/0236
+++ b/test/confs/0236
@@ -1,6 +1,7 @@
 # Exim test configuration 0236
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0237 b/test/confs/0237
index e23daa1cc..64b21d883 100644
--- a/test/confs/0237
+++ b/test/confs/0237
@@ -1,6 +1,7 @@
 # Exim test configuration 0237
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0238 b/test/confs/0238
index 6c1e8f3e5..762f79b88 100644
--- a/test/confs/0238
+++ b/test/confs/0238
@@ -1,6 +1,7 @@
 # Exim test configuration 0238
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0239 b/test/confs/0239
index a68a76d9d..dad51060f 100644
--- a/test/confs/0239
+++ b/test/confs/0239
@@ -1,6 +1,7 @@
 # Exim test configuration 0239
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0240 b/test/confs/0240
index acccc8f8b..7b87390c6 100644
--- a/test/confs/0240
+++ b/test/confs/0240
@@ -1,6 +1,7 @@
 # Exim test configuration 0240
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0241 b/test/confs/0241
index f907b5f02..ef308b056 100644
--- a/test/confs/0241
+++ b/test/confs/0241
@@ -1,6 +1,7 @@
 # Exim test configuration 0241
 
 exim_path = EXIM_PATH/junk
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0242 b/test/confs/0242
index dfaa17aab..80def3188 100644
--- a/test/confs/0242
+++ b/test/confs/0242
@@ -1,6 +1,7 @@
 # Exim test configuration 0242
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0243 b/test/confs/0243
index f13453f22..b129d5df0 100644
--- a/test/confs/0243
+++ b/test/confs/0243
@@ -1,6 +1,7 @@
 # Exim test configuration 0243
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0244 b/test/confs/0244
index a144720a6..f49c6682c 100644
--- a/test/confs/0244
+++ b/test/confs/0244
@@ -1,6 +1,7 @@
 # Exim test configuration 0244
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0245 b/test/confs/0245
index 7e87be030..f0d822f05 100644
--- a/test/confs/0245
+++ b/test/confs/0245
@@ -1,6 +1,7 @@
 # Exim test configuration 0245
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0246 b/test/confs/0246
index 2cd7c3168..c180c3228 100644
--- a/test/confs/0246
+++ b/test/confs/0246
@@ -1,6 +1,7 @@
 # Exim test configuration 0246
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0247 b/test/confs/0247
index 395a8ca62..604fa6d71 100644
--- a/test/confs/0247
+++ b/test/confs/0247
@@ -1,6 +1,7 @@
 # Exim test configuration 0247
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0248 b/test/confs/0248
index 5828021ef..5d6efe85a 100644
--- a/test/confs/0248
+++ b/test/confs/0248
@@ -1,6 +1,7 @@
 # Exim test configuration 0248
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0249 b/test/confs/0249
index 8367e24ed..8788611f4 100644
--- a/test/confs/0249
+++ b/test/confs/0249
@@ -1,6 +1,7 @@
 # Exim test configuration 0249
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0250 b/test/confs/0250
index 78d960932..a91591b46 100644
--- a/test/confs/0250
+++ b/test/confs/0250
@@ -1,6 +1,7 @@
 # Exim test configuration 0250
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0251 b/test/confs/0251
index 32e184c44..53b40073e 100644
--- a/test/confs/0251
+++ b/test/confs/0251
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0252 b/test/confs/0252
index 05e2aa626..f1efdedbb 100644
--- a/test/confs/0252
+++ b/test/confs/0252
@@ -1,6 +1,7 @@
 # Exim test configuration 0252
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0253 b/test/confs/0253
index cc730cb8d..a72ec8971 100644
--- a/test/confs/0253
+++ b/test/confs/0253
@@ -1,6 +1,7 @@
 # Exim test configuration 0253
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0254 b/test/confs/0254
index 799bc699e..49fbc3171 100644
--- a/test/confs/0254
+++ b/test/confs/0254
@@ -1,6 +1,7 @@
 # Exim test configuration 0254
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0255 b/test/confs/0255
index 8f90f3486..494fe38a4 100644
--- a/test/confs/0255
+++ b/test/confs/0255
@@ -3,6 +3,7 @@
 OPTION=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0256 b/test/confs/0256
index 1ebdd2b71..1013be6af 100644
--- a/test/confs/0256
+++ b/test/confs/0256
@@ -1,6 +1,7 @@
 # Exim test configuration 0256
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0257 b/test/confs/0257
index 445ef68d0..aa673e0e5 100644
--- a/test/confs/0257
+++ b/test/confs/0257
@@ -1,6 +1,7 @@
 # Exim test configuration 0257
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0258 b/test/confs/0258
index 3c13d6c4c..d8dc8fcbe 100644
--- a/test/confs/0258
+++ b/test/confs/0258
@@ -1,6 +1,7 @@
 # Exim test configuration 0258
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0259 b/test/confs/0259
index fef46a187..87ff2b599 100644
--- a/test/confs/0259
+++ b/test/confs/0259
@@ -1,6 +1,7 @@
 # Exim test configuration 0259
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 rfc1413_query_timeout = 5s
diff --git a/test/confs/0260 b/test/confs/0260
index c2d9a8bfd..c93ba4857 100644
--- a/test/confs/0260
+++ b/test/confs/0260
@@ -1,6 +1,7 @@
 # Exim test configuration 0260
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0261 b/test/confs/0261
index 0ac6903aa..640c3d4bb 100644
--- a/test/confs/0261
+++ b/test/confs/0261
@@ -1,6 +1,7 @@
 # Exim test configuration 0261
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0262 b/test/confs/0262
index 0f84c7a5c..b41e41290 100644
--- a/test/confs/0262
+++ b/test/confs/0262
@@ -1,6 +1,7 @@
 # Exim test configuration 0262
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0263 b/test/confs/0263
index 417bfeaaa..e5d1be52f 100644
--- a/test/confs/0263
+++ b/test/confs/0263
@@ -1,6 +1,7 @@
 # Exim test configuration 0263
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0264 b/test/confs/0264
index ffa460296..351f887bd 100644
--- a/test/confs/0264
+++ b/test/confs/0264
@@ -1,6 +1,7 @@
 # Exim test configuration 0264
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0265 b/test/confs/0265
index 87ffd2ee9..44433ee96 100644
--- a/test/confs/0265
+++ b/test/confs/0265
@@ -1,6 +1,7 @@
 # Exim test configuration 0265
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0266 b/test/confs/0266
index 3a151f5df..654131599 100644
--- a/test/confs/0266
+++ b/test/confs/0266
@@ -1,6 +1,7 @@
 # Exim test configuration 0266
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0267 b/test/confs/0267
index 73dc94b8b..088184133 100644
--- a/test/confs/0267
+++ b/test/confs/0267
@@ -1,6 +1,7 @@
 # Exim test configuration 0267
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0268 b/test/confs/0268
index 0d22e85d9..97cd20afb 100644
--- a/test/confs/0268
+++ b/test/confs/0268
@@ -1,6 +1,7 @@
 # Exim test configuration 0268
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0269 b/test/confs/0269
index e7b63605c..7a66a9470 100644
--- a/test/confs/0269
+++ b/test/confs/0269
@@ -1,6 +1,7 @@
 # Exim test configuration 0269
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0270 b/test/confs/0270
index 3cd379d50..ff4ff94db 100644
--- a/test/confs/0270
+++ b/test/confs/0270
@@ -1,6 +1,7 @@
 # Exim test configuration 0270
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0271 b/test/confs/0271
index 4e08b8fd1..27b70b952 100644
--- a/test/confs/0271
+++ b/test/confs/0271
@@ -1,6 +1,7 @@
 # Exim test configuration 0271
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0272 b/test/confs/0272
index f4e8604f8..8d0a06c7a 100644
--- a/test/confs/0272
+++ b/test/confs/0272
@@ -1,6 +1,7 @@
 # Exim test configuration 0272
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0273 b/test/confs/0273
index 180e30f7d..59859fd94 100644
--- a/test/confs/0273
+++ b/test/confs/0273
@@ -1,6 +1,7 @@
 # Exim test configuration 0273
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0274 b/test/confs/0274
index ed318d228..b9386fa3d 100644
--- a/test/confs/0274
+++ b/test/confs/0274
@@ -1,6 +1,7 @@
 # Exim test configuration 0274
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0275 b/test/confs/0275
index e4fc444b8..9fc81959d 100644
--- a/test/confs/0275
+++ b/test/confs/0275
@@ -1,6 +1,7 @@
 # Exim test configuration 0275
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0276 b/test/confs/0276
index e3b3dc485..b2c2c4934 100644
--- a/test/confs/0276
+++ b/test/confs/0276
@@ -1,6 +1,7 @@
 # Exim test configuration 0276
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0277 b/test/confs/0277
index 47d528656..eae651304 100644
--- a/test/confs/0277
+++ b/test/confs/0277
@@ -1,6 +1,7 @@
 # Exim test configuration 0277
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0278 b/test/confs/0278
index 3b47eb751..e9df34ee1 100644
--- a/test/confs/0278
+++ b/test/confs/0278
@@ -1,6 +1,7 @@
 # Exim test configuration 0278
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0279 b/test/confs/0279
index 5bcba7951..d2e0432d2 100644
--- a/test/confs/0279
+++ b/test/confs/0279
@@ -1,6 +1,7 @@
 # Exim test configuration 0279
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0280 b/test/confs/0280
index 389176e60..8e7e800ad 100644
--- a/test/confs/0280
+++ b/test/confs/0280
@@ -1,6 +1,7 @@
 # Exim test configuration 0280
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0281 b/test/confs/0281
index 94527a2d2..e4fa117de 100644
--- a/test/confs/0281
+++ b/test/confs/0281
@@ -1,6 +1,7 @@
 # Exim test configuration 0281
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0282 b/test/confs/0282
index 90875f5c0..578e2b78c 100644
--- a/test/confs/0282
+++ b/test/confs/0282
@@ -1,6 +1,7 @@
 # Exim test configuration 0282
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0283 b/test/confs/0283
index 23949cb1f..580775bdc 100644
--- a/test/confs/0283
+++ b/test/confs/0283
@@ -1,6 +1,7 @@
 # Exim test configuration 0283
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0284 b/test/confs/0284
index f11e99bc2..2473ca84a 100644
--- a/test/confs/0284
+++ b/test/confs/0284
@@ -1,6 +1,7 @@
 # Exim test configuration 0284
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0285 b/test/confs/0285
index c06762dab..deb4ae79c 100644
--- a/test/confs/0285
+++ b/test/confs/0285
@@ -1,6 +1,7 @@
 # Exim test configuration 0285
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0286 b/test/confs/0286
index c5426f45f..26acbc050 100644
--- a/test/confs/0286
+++ b/test/confs/0286
@@ -1,6 +1,7 @@
 # Exim test configuration 0286
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0287 b/test/confs/0287
index 8f9105c94..afd3d464c 100644
--- a/test/confs/0287
+++ b/test/confs/0287
@@ -1,6 +1,7 @@
 # Exim test configuration 0287
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0288 b/test/confs/0288
index 270ffb29e..0b7f2ad8a 100644
--- a/test/confs/0288
+++ b/test/confs/0288
@@ -1,6 +1,7 @@
 # Exim test configuration 0288
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0289 b/test/confs/0289
index a3d42e8c2..b068539ae 100644
--- a/test/confs/0289
+++ b/test/confs/0289
@@ -1,6 +1,7 @@
 # Exim test configuration 0289
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0290 b/test/confs/0290
index 47b2cec34..4ae228fd3 100644
--- a/test/confs/0290
+++ b/test/confs/0290
@@ -11,6 +11,7 @@ C2=#
 C1C2 this should be a comment
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0291 b/test/confs/0291
index a3b3277b7..8290da7cd 100644
--- a/test/confs/0291
+++ b/test/confs/0291
@@ -1,6 +1,7 @@
 # Exim test configuration 0291
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0292 b/test/confs/0292
index 708909793..059387576 100644
--- a/test/confs/0292
+++ b/test/confs/0292
@@ -1,6 +1,7 @@
 # Exim test configuration 0292
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0293 b/test/confs/0293
index 4f841bb1f..4eff223b3 100644
--- a/test/confs/0293
+++ b/test/confs/0293
@@ -1,6 +1,7 @@
 # Exim test configuration 0293
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0294 b/test/confs/0294
index e1338b022..6c0bd61e4 100644
--- a/test/confs/0294
+++ b/test/confs/0294
@@ -1,6 +1,7 @@
 # Exim test configuration 0294
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0295 b/test/confs/0295
index a273eb2b9..28bea3f14 100644
--- a/test/confs/0295
+++ b/test/confs/0295
@@ -1,6 +1,7 @@
 # Exim test configuration 0295
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0296 b/test/confs/0296
index 4f820bdc3..0d122c722 100644
--- a/test/confs/0296
+++ b/test/confs/0296
@@ -1,6 +1,7 @@
 # Exim test configuration 0296
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0297 b/test/confs/0297
index 0e2ca1bd9..a2433dead 100644
--- a/test/confs/0297
+++ b/test/confs/0297
@@ -1,6 +1,7 @@
 # Exim test configuration 0297
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0298 b/test/confs/0298
index 5517f8f5e..b19ca8bb4 100644
--- a/test/confs/0298
+++ b/test/confs/0298
@@ -1,6 +1,7 @@
 # Exim test configuration 0298
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0299 b/test/confs/0299
index 7487182d5..9b1ced6d0 100644
--- a/test/confs/0299
+++ b/test/confs/0299
@@ -1,6 +1,7 @@
 # Exim test configuration 0299
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0300 b/test/confs/0300
index 4587852ef..e791416bc 100644
--- a/test/confs/0300
+++ b/test/confs/0300
@@ -4,6 +4,7 @@ DELAY=0s
 PAH=127.0.0.1
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0301 b/test/confs/0301
index 813143149..dc5388216 100644
--- a/test/confs/0301
+++ b/test/confs/0301
@@ -1,6 +1,7 @@
 # Exim test configuration 0301
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0302 b/test/confs/0302
index f41f6b389..f1b66bdc7 100644
--- a/test/confs/0302
+++ b/test/confs/0302
@@ -1,6 +1,7 @@
 # Exim test configuration 0302
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0303 b/test/confs/0303
index 963d786d6..ef1cc637c 100644
--- a/test/confs/0303
+++ b/test/confs/0303
@@ -1,6 +1,7 @@
 # Exim test configuration 0303
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0304 b/test/confs/0304
index 1f292a98c..1631b5c1a 100644
--- a/test/confs/0304
+++ b/test/confs/0304
@@ -1,6 +1,7 @@
 # Exim test configuration 0304
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0305 b/test/confs/0305
index c208832c7..880985720 100644
--- a/test/confs/0305
+++ b/test/confs/0305
@@ -1,6 +1,7 @@
 # Exim test configuration 0305
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0306 b/test/confs/0306
index a6bf031a9..b0fc90147 100644
--- a/test/confs/0306
+++ b/test/confs/0306
@@ -1,6 +1,7 @@
 # Exim test configuration 0306
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0307 b/test/confs/0307
index e64a14edd..c81d533d3 100644
--- a/test/confs/0307
+++ b/test/confs/0307
@@ -1,6 +1,7 @@
 # Exim test configuration 0307
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0308 b/test/confs/0308
index 0d917c772..bac1f5b77 100644
--- a/test/confs/0308
+++ b/test/confs/0308
@@ -1,6 +1,7 @@
 # Exim test configuration 0308
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0309 b/test/confs/0309
index 13a53b360..471207787 100644
--- a/test/confs/0309
+++ b/test/confs/0309
@@ -1,6 +1,7 @@
 # Exim test configuration 0309
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0310 b/test/confs/0310
index aec448cbe..1c943ba67 100644
--- a/test/confs/0310
+++ b/test/confs/0310
@@ -1,6 +1,7 @@
 # Exim test configuration 0310
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0311 b/test/confs/0311
index 644cc5eb0..5fe3c9656 100644
--- a/test/confs/0311
+++ b/test/confs/0311
@@ -1,6 +1,7 @@
 # Exim test configuration 0311
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0312 b/test/confs/0312
index b0adf43eb..8c6cf51ab 100644
--- a/test/confs/0312
+++ b/test/confs/0312
@@ -1,6 +1,7 @@
 # Exim test configuration 0312
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0313 b/test/confs/0313
index 7cb021d61..a11320532 100644
--- a/test/confs/0313
+++ b/test/confs/0313
@@ -1,6 +1,7 @@
 # Exim test configuration 0313
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0314 b/test/confs/0314
index 9baef2e20..c640286d4 100644
--- a/test/confs/0314
+++ b/test/confs/0314
@@ -1,6 +1,7 @@
 # Exim test configuration 0314
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0315 b/test/confs/0315
index 61a712e0f..e633cdd3b 100644
--- a/test/confs/0315
+++ b/test/confs/0315
@@ -1,6 +1,7 @@
 # Exim test configuration 0315
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0316 b/test/confs/0316
index 3d836d6c0..3c20ef99c 100644
--- a/test/confs/0316
+++ b/test/confs/0316
@@ -1,6 +1,7 @@
 # Exim test configuration 0316
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0317 b/test/confs/0317
index efce1f8ee..6066642d9 100644
--- a/test/confs/0317
+++ b/test/confs/0317
@@ -1,6 +1,7 @@
 # Exim test configuration 0317
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0318 b/test/confs/0318
index a88b37eac..6870e4c54 100644
--- a/test/confs/0318
+++ b/test/confs/0318
@@ -1,6 +1,7 @@
 # Exim test configuration 0318
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0319 b/test/confs/0319
index 549c55f39..31ee9c30f 100644
--- a/test/confs/0319
+++ b/test/confs/0319
@@ -1,6 +1,7 @@
 # Exim test configuration 0319
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0320 b/test/confs/0320
index e553a967c..28cb91f08 100644
--- a/test/confs/0320
+++ b/test/confs/0320
@@ -1,6 +1,7 @@
 # Exim test configuration 0320
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0321 b/test/confs/0321
index 61dcd07ea..71b0c6f18 100644
--- a/test/confs/0321
+++ b/test/confs/0321
@@ -1,6 +1,7 @@
 # Exim test configuration 0321
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0322 b/test/confs/0322
index 34385f708..b0943a990 100644
--- a/test/confs/0322
+++ b/test/confs/0322
@@ -3,6 +3,7 @@
 LS=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0323 b/test/confs/0323
index 049bf1c1b..9c40b4491 100644
--- a/test/confs/0323
+++ b/test/confs/0323
@@ -1,6 +1,7 @@
 # Exim test configuration 0323
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0324 b/test/confs/0324
index 814239701..0201c4cf6 100644
--- a/test/confs/0324
+++ b/test/confs/0324
@@ -1,6 +1,7 @@
 # Exim test configuration 0324
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0325 b/test/confs/0325
index d6f006e7b..098e49f5e 100644
--- a/test/confs/0325
+++ b/test/confs/0325
@@ -1,6 +1,7 @@
 # Exim test configuration 0325
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0326 b/test/confs/0326
index a8d6c6634..cd1006f52 100644
--- a/test/confs/0326
+++ b/test/confs/0326
@@ -1,6 +1,7 @@
 # Exim test configuration 0326
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0327 b/test/confs/0327
index b6d8baa35..b4df4f271 100644
--- a/test/confs/0327
+++ b/test/confs/0327
@@ -1,6 +1,7 @@
 # Exim test configuration 0327
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0328 b/test/confs/0328
index 516012a46..d7df4648b 100644
--- a/test/confs/0328
+++ b/test/confs/0328
@@ -1,6 +1,7 @@
 # Exim test configuration 0328
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0329 b/test/confs/0329
index 58ddc4086..aab18fca0 100644
--- a/test/confs/0329
+++ b/test/confs/0329
@@ -1,6 +1,7 @@
 # Exim test configuration 0329
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0330 b/test/confs/0330
index a5043257f..86e2e3a6a 100644
--- a/test/confs/0330
+++ b/test/confs/0330
@@ -1,6 +1,7 @@
 # Exim test configuration 0330
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0331 b/test/confs/0331
index 96108ba65..881a4ca7d 100644
--- a/test/confs/0331
+++ b/test/confs/0331
@@ -1,6 +1,7 @@
 # Exim test configuration 0331
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0332 b/test/confs/0332
index c7785dc58..789e7cb81 100644
--- a/test/confs/0332
+++ b/test/confs/0332
@@ -1,6 +1,7 @@
 # Exim test configuration 0332
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0333 b/test/confs/0333
index 3113131f9..91956b7fc 100644
--- a/test/confs/0333
+++ b/test/confs/0333
@@ -1,6 +1,7 @@
 # Exim test configuration 0333
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0334 b/test/confs/0334
index 989f66785..1ab1581ca 100644
--- a/test/confs/0334
+++ b/test/confs/0334
@@ -1,6 +1,7 @@
 # Exim test configuration 0334
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0335 b/test/confs/0335
index 72d9a291a..8b21c218a 100644
--- a/test/confs/0335
+++ b/test/confs/0335
@@ -1,6 +1,7 @@
 # Exim test configuration 0335
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0336 b/test/confs/0336
index ae6136b9a..35a7e86d7 100644
--- a/test/confs/0336
+++ b/test/confs/0336
@@ -1,6 +1,7 @@
 # Exim test configuration 0336
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0337 b/test/confs/0337
index ce80752de..acf2813b4 100644
--- a/test/confs/0337
+++ b/test/confs/0337
@@ -1,6 +1,7 @@
 # Exim test configuration 0337
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0338 b/test/confs/0338
index 4c14bc01c..9f132748d 100644
--- a/test/confs/0338
+++ b/test/confs/0338
@@ -1,6 +1,7 @@
 # Exim test configuration 0338
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0339 b/test/confs/0339
index 04b8683df..70eb9dd36 100644
--- a/test/confs/0339
+++ b/test/confs/0339
@@ -1,6 +1,7 @@
 # Exim test configuration 0339
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0340 b/test/confs/0340
index aa3a97577..efa16546a 100644
--- a/test/confs/0340
+++ b/test/confs/0340
@@ -1,6 +1,7 @@
 # Exim test configuration 0340
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0341 b/test/confs/0341
index fcb187ac3..f6bbca8fb 100644
--- a/test/confs/0341
+++ b/test/confs/0341
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0342 b/test/confs/0342
index be285fd77..8caf9ba20 100644
--- a/test/confs/0342
+++ b/test/confs/0342
@@ -1,6 +1,7 @@
 # Exim test configuration 0342
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0343 b/test/confs/0343
index 60fa9626c..5d76d8f12 100644
--- a/test/confs/0343
+++ b/test/confs/0343
@@ -1,6 +1,7 @@
 # Exim test configuration 0343
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0344 b/test/confs/0344
index 9483069ad..fa129abb8 100644
--- a/test/confs/0344
+++ b/test/confs/0344
@@ -1,6 +1,7 @@
 # Exim test configuration 0344
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0345 b/test/confs/0345
index ad35ca5ec..5042d9d08 100644
--- a/test/confs/0345
+++ b/test/confs/0345
@@ -1,6 +1,7 @@
 # Exim test configuration 0345
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0346 b/test/confs/0346
index 560c55699..2e5122667 100644
--- a/test/confs/0346
+++ b/test/confs/0346
@@ -1,6 +1,7 @@
 # Exim test configuration 0346
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0347 b/test/confs/0347
index a68f43380..ec56454eb 100644
--- a/test/confs/0347
+++ b/test/confs/0347
@@ -1,6 +1,7 @@
 # Exim test configuration 0347
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0348 b/test/confs/0348
index c196b41e8..036b7806f 100644
--- a/test/confs/0348
+++ b/test/confs/0348
@@ -3,6 +3,7 @@
 RETRY=G,1,20m,1.5
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0349 b/test/confs/0349
index 65b1083f2..4bcf9d403 100644
--- a/test/confs/0349
+++ b/test/confs/0349
@@ -1,6 +1,7 @@
 # Exim test configuration 0349
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0350 b/test/confs/0350
index c842a2a4f..6741f8653 100644
--- a/test/confs/0350
+++ b/test/confs/0350
@@ -1,6 +1,7 @@
 # Exim test configuration 0350
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0351 b/test/confs/0351
index f67365209..de326f334 100644
--- a/test/confs/0351
+++ b/test/confs/0351
@@ -1,6 +1,7 @@
 # Exim test configuration 0351
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0352 b/test/confs/0352
index 67e48371f..0cbabd870 100644
--- a/test/confs/0352
+++ b/test/confs/0352
@@ -1,6 +1,7 @@
 # Exim test configuration 0352
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0353 b/test/confs/0353
index e090d4850..3db7f6da5 100644
--- a/test/confs/0353
+++ b/test/confs/0353
@@ -1,6 +1,7 @@
 # Exim test configuration 0353
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0354 b/test/confs/0354
index 523257c6e..f31994347 100644
--- a/test/confs/0354
+++ b/test/confs/0354
@@ -1,6 +1,7 @@
 # Exim test configuration 0354
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0355 b/test/confs/0355
index 8615e0804..8eb4f3ddb 100644
--- a/test/confs/0355
+++ b/test/confs/0355
@@ -1,6 +1,7 @@
 # Exim test configuration 0355
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0356 b/test/confs/0356
index 5a9311931..f0984344f 100644
--- a/test/confs/0356
+++ b/test/confs/0356
@@ -3,6 +3,7 @@
 MESSAGE_LOGS =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0357 b/test/confs/0357
index a83c3899c..06ca9fc86 100644
--- a/test/confs/0357
+++ b/test/confs/0357
@@ -1,6 +1,7 @@
 # Exim test configuration 0357
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0358 b/test/confs/0358
index 4a2b7dd20..601d67e43 100644
--- a/test/confs/0358
+++ b/test/confs/0358
@@ -1,6 +1,7 @@
 # Exim test configuration 0358
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0359 b/test/confs/0359
index 5effea5f8..bd1c441ad 100644
--- a/test/confs/0359
+++ b/test/confs/0359
@@ -1,6 +1,7 @@
 # Exim test configuration 0359
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0360 b/test/confs/0360
index a00f1029b..1df4a3964 100644
--- a/test/confs/0360
+++ b/test/confs/0360
@@ -1,6 +1,7 @@
 # Exim test configuration 0360
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0361 b/test/confs/0361
index b374e1d6e..06f142203 100644
--- a/test/confs/0361
+++ b/test/confs/0361
@@ -1,6 +1,7 @@
 # Exim test configuration 0361
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0362 b/test/confs/0362
index 2afdca6aa..1c751e48a 100644
--- a/test/confs/0362
+++ b/test/confs/0362
@@ -1,6 +1,7 @@
 # Exim test configuration 0362
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0363 b/test/confs/0363
index 9b094f865..c2422540d 100644
--- a/test/confs/0363
+++ b/test/confs/0363
@@ -1,6 +1,7 @@
 # Exim test configuration 0363
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0364 b/test/confs/0364
index 141189182..6afc17741 100644
--- a/test/confs/0364
+++ b/test/confs/0364
@@ -1,6 +1,7 @@
 # Exim test configuration 0364
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0365 b/test/confs/0365
index fb7e872d3..c9393f9b8 100644
--- a/test/confs/0365
+++ b/test/confs/0365
@@ -4,6 +4,7 @@ DETAILS=false
 SELECTOR=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0366 b/test/confs/0366
index 4ad94b157..e41c5863a 100644
--- a/test/confs/0366
+++ b/test/confs/0366
@@ -3,6 +3,7 @@
 HOSTS_MAX_TRY=5
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0367 b/test/confs/0367
index 9f6a9d34b..807da4332 100644
--- a/test/confs/0367
+++ b/test/confs/0367
@@ -1,6 +1,7 @@
 # Exim test configuration 0367
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0368 b/test/confs/0368
index 5afb8e786..6d3f10cb2 100644
--- a/test/confs/0368
+++ b/test/confs/0368
@@ -1,6 +1,7 @@
 # Exim test configuration 0368
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0369 b/test/confs/0369
index 40043c47b..fc283f0a6 100644
--- a/test/confs/0369
+++ b/test/confs/0369
@@ -1,6 +1,7 @@
 # Exim test configuration 0369
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0370 b/test/confs/0370
index 865dd6a9f..0602804b0 100644
--- a/test/confs/0370
+++ b/test/confs/0370
@@ -1,6 +1,7 @@
 # Exim test configuration 0370
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0371 b/test/confs/0371
index 679a54bd9..d193902c6 100644
--- a/test/confs/0371
+++ b/test/confs/0371
@@ -1,6 +1,7 @@
 # Exim test configuration 0371
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0372 b/test/confs/0372
index ac2b4bb2f..004c8df12 100644
--- a/test/confs/0372
+++ b/test/confs/0372
@@ -3,6 +3,7 @@
 STRICT=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0373 b/test/confs/0373
index b0407ebd8..bec46ad46 100644
--- a/test/confs/0373
+++ b/test/confs/0373
@@ -1,6 +1,7 @@
 # Exim test configuration 0373
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0374 b/test/confs/0374
index b345a9f28..29173a350 100644
--- a/test/confs/0374
+++ b/test/confs/0374
@@ -1,6 +1,7 @@
 # Exim test configuration 0374
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0375 b/test/confs/0375
index 1c246afa0..efb58ff14 100644
--- a/test/confs/0375
+++ b/test/confs/0375
@@ -1,6 +1,7 @@
 # Exim test configuration 0375
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0376 b/test/confs/0376
index 7a0b0fc42..49ee23c54 100644
--- a/test/confs/0376
+++ b/test/confs/0376
@@ -3,6 +3,7 @@
 PEX=10s
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0377 b/test/confs/0377
index 729e80cbc..8499f6cb7 100644
--- a/test/confs/0377
+++ b/test/confs/0377
@@ -1,6 +1,7 @@
 # Exim test configuration 0377
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0378 b/test/confs/0378
index 9f1ed6801..c008c50dd 100644
--- a/test/confs/0378
+++ b/test/confs/0378
@@ -1,6 +1,7 @@
 # Exim test configuration 0378
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0379 b/test/confs/0379
index 7fca137e0..2413c7961 100644
--- a/test/confs/0379
+++ b/test/confs/0379
@@ -1,6 +1,7 @@
 # Exim test configuration 0379
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0380 b/test/confs/0380
index 8403ccb5c..a18a0ff7f 100644
--- a/test/confs/0380
+++ b/test/confs/0380
@@ -1,6 +1,7 @@
 # Exim test configuration 0380
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0381 b/test/confs/0381
index 4f7304e2c..e0d5677f9 100644
--- a/test/confs/0381
+++ b/test/confs/0381
@@ -1,6 +1,7 @@
 # Exim test configuration 0381
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0382 b/test/confs/0382
index e986a284b..fe7369b32 100644
--- a/test/confs/0382
+++ b/test/confs/0382
@@ -1,6 +1,7 @@
 # Exim test configuration 0382
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0383 b/test/confs/0383
index 1749bfad2..5e21fb510 100644
--- a/test/confs/0383
+++ b/test/confs/0383
@@ -1,6 +1,7 @@
 # Exim test configuration 0383
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0384 b/test/confs/0384
index f8dce40f6..6a60417f9 100644
--- a/test/confs/0384
+++ b/test/confs/0384
@@ -1,6 +1,7 @@
 # Exim test configuration 0384
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0385 b/test/confs/0385
index e21e3cb1c..6ad6ed9e1 100644
--- a/test/confs/0385
+++ b/test/confs/0385
@@ -1,6 +1,7 @@
 # Exim test configuration 0385
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0386 b/test/confs/0386
index c9715f171..06af951e9 100644
--- a/test/confs/0386
+++ b/test/confs/0386
@@ -1,6 +1,7 @@
 # Exim test configuration 0386
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0387 b/test/confs/0387
index 5b7d59171..ddafd5467 100644
--- a/test/confs/0387
+++ b/test/confs/0387
@@ -1,6 +1,7 @@
 # Exim test configuration 0387
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0388 b/test/confs/0388
index 3806182d8..08d2db70f 100644
--- a/test/confs/0388
+++ b/test/confs/0388
@@ -1,6 +1,7 @@
 # Exim test configuration 0388
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0389 b/test/confs/0389
index b3d5f660a..84c27588b 100644
--- a/test/confs/0389
+++ b/test/confs/0389
@@ -1,6 +1,7 @@
 # Exim test configuration 0389
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0390 b/test/confs/0390
index 06932291c..05d33ecb3 100644
--- a/test/confs/0390
+++ b/test/confs/0390
@@ -1,6 +1,7 @@
 # Exim test configuration 0390
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0391 b/test/confs/0391
index 2bea70832..fc5cf57e3 100644
--- a/test/confs/0391
+++ b/test/confs/0391
@@ -1,6 +1,7 @@
 # Exim test configuration 0391
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0392 b/test/confs/0392
index bb6c683eb..d77cdc5fd 100644
--- a/test/confs/0392
+++ b/test/confs/0392
@@ -1,6 +1,7 @@
 # Exim test configuration 0392
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0393 b/test/confs/0393
index 7b1d0fb13..92a65dfe4 100644
--- a/test/confs/0393
+++ b/test/confs/0393
@@ -3,6 +3,7 @@
 FILTER=/bin/cat
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0394 b/test/confs/0394
index f7dfe9095..ddecebcce 100644
--- a/test/confs/0394
+++ b/test/confs/0394
@@ -3,6 +3,7 @@
 OPT=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0395 b/test/confs/0395
index dda9055e9..229a7e45e 100644
--- a/test/confs/0395
+++ b/test/confs/0395
@@ -3,6 +3,7 @@
 TRUSTED=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0396 b/test/confs/0396
index 5fd547f1a..518c6a9f5 100644
--- a/test/confs/0396
+++ b/test/confs/0396
@@ -1,6 +1,7 @@
 # Exim test configuration 0396
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0397 b/test/confs/0397
index 99c86ac0a..413e9d7ba 100644
--- a/test/confs/0397
+++ b/test/confs/0397
@@ -1,6 +1,7 @@
 # Exim test configuration 0397
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 gecos_pattern = ""
diff --git a/test/confs/0398 b/test/confs/0398
index b894e46d8..ff12142c7 100644
--- a/test/confs/0398
+++ b/test/confs/0398
@@ -1,6 +1,7 @@
 # Exim test configuration 0398
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0399 b/test/confs/0399
index 45e68e3c4..5c59311f9 100644
--- a/test/confs/0399
+++ b/test/confs/0399
@@ -1,6 +1,7 @@
 # Exim test configuration 0399
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0400 b/test/confs/0400
index d2721dfeb..8006f8693 100644
--- a/test/confs/0400
+++ b/test/confs/0400
@@ -3,6 +3,7 @@
 DATA=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0401 b/test/confs/0401
index 6a267d2b3..220010765 100644
--- a/test/confs/0401
+++ b/test/confs/0401
@@ -1,6 +1,7 @@
 # Exim test configuration 0401
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0402 b/test/confs/0402
index b231629b8..f08edfb95 100644
--- a/test/confs/0402
+++ b/test/confs/0402
@@ -1,6 +1,7 @@
 # Exim test configuration 0402
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0403 b/test/confs/0403
index dc7f09cbb..0af0c0413 100644
--- a/test/confs/0403
+++ b/test/confs/0403
@@ -1,6 +1,7 @@
 # Exim test configuration 0403
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0404 b/test/confs/0404
index 5fe8c9b50..b3116802b 100644
--- a/test/confs/0404
+++ b/test/confs/0404
@@ -1,6 +1,7 @@
 # Exim test configuration 0404
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0405 b/test/confs/0405
index 8fe224808..5347487e1 100644
--- a/test/confs/0405
+++ b/test/confs/0405
@@ -3,6 +3,7 @@
 UTF8=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0406 b/test/confs/0406
index 26d4c2d64..1314e756c 100644
--- a/test/confs/0406
+++ b/test/confs/0406
@@ -1,6 +1,7 @@
 # Exim test configuration 0406
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0407 b/test/confs/0407
index 5da660ce7..0d92d2110 100644
--- a/test/confs/0407
+++ b/test/confs/0407
@@ -4,6 +4,7 @@ HEADER_MAXSIZE=
 HEADER_LINE_MAXSIZE=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0408 b/test/confs/0408
index 9f1af13cb..b75b804f8 100644
--- a/test/confs/0408
+++ b/test/confs/0408
@@ -1,6 +1,7 @@
 # Exim test configuration 0408
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0409 b/test/confs/0409
index d84f882ee..98fc10e45 100644
--- a/test/confs/0409
+++ b/test/confs/0409
@@ -3,6 +3,7 @@
 BANNER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0410 b/test/confs/0410
index 6d416fc6a..da6b73d64 100644
--- a/test/confs/0410
+++ b/test/confs/0410
@@ -1,6 +1,7 @@
 # Exim test configuration 0410
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0411 b/test/confs/0411
index d60c0ae44..6a50f1318 100644
--- a/test/confs/0411
+++ b/test/confs/0411
@@ -1,6 +1,7 @@
 # Exim test configuration 0411
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0412 b/test/confs/0412
index da851b376..4fb964311 100644
--- a/test/confs/0412
+++ b/test/confs/0412
@@ -1,6 +1,7 @@
 # Exim test configuration 0412
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0413 b/test/confs/0413
index daadb477e..fbc52ed2a 100644
--- a/test/confs/0413
+++ b/test/confs/0413
@@ -1,6 +1,7 @@
 # Exim test configuration 0413
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0414 b/test/confs/0414
index 8a3b109f7..c5cc139b1 100644
--- a/test/confs/0414
+++ b/test/confs/0414
@@ -1,6 +1,7 @@
 # Exim test configuration 0414
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0415 b/test/confs/0415
index 13e61d994..3a4f8f759 100644
--- a/test/confs/0415
+++ b/test/confs/0415
@@ -5,6 +5,7 @@ ARG2=1.0
 VALUE=0
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0416 b/test/confs/0416
index c2780b0d5..b14711129 100644
--- a/test/confs/0416
+++ b/test/confs/0416
@@ -1,6 +1,7 @@
 # Exim test configuration 0416
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0417 b/test/confs/0417
index 12c9f6890..6fb5384fb 100644
--- a/test/confs/0417
+++ b/test/confs/0417
@@ -3,6 +3,7 @@
 RETURN_ERROR_DETAILS = false
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0418 b/test/confs/0418
index 9cf13e30c..087cd878c 100644
--- a/test/confs/0418
+++ b/test/confs/0418
@@ -1,6 +1,7 @@
 # Exim test configuration 0418
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0419 b/test/confs/0419
index 74e7c6978..625a29569 100644
--- a/test/confs/0419
+++ b/test/confs/0419
@@ -1,6 +1,7 @@
 # Exim test configuration 0419
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0420 b/test/confs/0420
index 4db37bf80..765dbe741 100644
--- a/test/confs/0420
+++ b/test/confs/0420
@@ -1,6 +1,7 @@
 # Exim test configuration 0420
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0421 b/test/confs/0421
index ba1988103..d8a4515ad 100644
--- a/test/confs/0421
+++ b/test/confs/0421
@@ -1,6 +1,7 @@
 # Exim test configuration 0421
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0422 b/test/confs/0422
index 00d8000f3..a72fe1179 100644
--- a/test/confs/0422
+++ b/test/confs/0422
@@ -1,6 +1,7 @@
 # Exim test configuration 0422
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0423 b/test/confs/0423
index f6c9778e1..42c07540e 100644
--- a/test/confs/0423
+++ b/test/confs/0423
@@ -1,6 +1,7 @@
 # Exim test configuration 0423
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0424 b/test/confs/0424
index 657741c2c..bd3c1bc69 100644
--- a/test/confs/0424
+++ b/test/confs/0424
@@ -1,6 +1,7 @@
 # Exim test configuration 0424
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0425 b/test/confs/0425
index ca5ef4326..b9c18ca18 100644
--- a/test/confs/0425
+++ b/test/confs/0425
@@ -1,6 +1,7 @@
 # Exim test configuration 0425
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0426 b/test/confs/0426
index 45ab74fe0..c7e61ce95 100644
--- a/test/confs/0426
+++ b/test/confs/0426
@@ -1,6 +1,7 @@
 # Exim test configuration 0426
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0427 b/test/confs/0427
index f20028e49..e6d28976a 100644
--- a/test/confs/0427
+++ b/test/confs/0427
@@ -1,6 +1,7 @@
 # Exim test configuration 0427
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0428 b/test/confs/0428
index fa00a43bf..1bb65749a 100644
--- a/test/confs/0428
+++ b/test/confs/0428
@@ -1,6 +1,7 @@
 # Exim test configuration 0428
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0429 b/test/confs/0429
index aa9a4c77a..8f7e66d5c 100644
--- a/test/confs/0429
+++ b/test/confs/0429
@@ -1,6 +1,7 @@
 # Exim test configuration 0429
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0430 b/test/confs/0430
index 4a0f8e3c4..6d8dea421 100644
--- a/test/confs/0430
+++ b/test/confs/0430
@@ -4,6 +4,7 @@ LIST=
 SELF=freeze
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0431 b/test/confs/0431
index bdb81372f..44abab42f 100644
--- a/test/confs/0431
+++ b/test/confs/0431
@@ -3,6 +3,7 @@
 AFFIX=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0432 b/test/confs/0432
index cbc77885f..b625f87f9 100644
--- a/test/confs/0432
+++ b/test/confs/0432
@@ -1,6 +1,7 @@
 # Exim test configuration 0432
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0433 b/test/confs/0433
index 905a6e57f..90b3f0dba 100644
--- a/test/confs/0433
+++ b/test/confs/0433
@@ -5,6 +5,7 @@ IFACE=
 
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0434 b/test/confs/0434
index 19d7e11ad..103e60e44 100644
--- a/test/confs/0434
+++ b/test/confs/0434
@@ -3,6 +3,7 @@
 ELI=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0435 b/test/confs/0435
index a2c43ad94..09a5e7bc2 100644
--- a/test/confs/0435
+++ b/test/confs/0435
@@ -1,6 +1,7 @@
 # Exim test configuration 0435
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0436 b/test/confs/0436
index 358522b41..2ef123e93 100644
--- a/test/confs/0436
+++ b/test/confs/0436
@@ -1,6 +1,7 @@
 # Exim test configuration 0436
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0437 b/test/confs/0437
index 6d050c508..bbcb3f667 100644
--- a/test/confs/0437
+++ b/test/confs/0437
@@ -1,6 +1,7 @@
 # Exim test configuration 0437
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 
diff --git a/test/confs/0438 b/test/confs/0438
index 9e89feb03..c0f8e45e0 100644
--- a/test/confs/0438
+++ b/test/confs/0438
@@ -1,6 +1,7 @@
 # Exim test configuration 0438
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0439 b/test/confs/0439
index 8b3941ce5..0bc9578f5 100644
--- a/test/confs/0439
+++ b/test/confs/0439
@@ -1,6 +1,7 @@
 # Exim test configuration 0439
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0440 b/test/confs/0440
index 06eb6ecdd..87ef6c893 100644
--- a/test/confs/0440
+++ b/test/confs/0440
@@ -1,6 +1,7 @@
 # Exim test configuration 0440
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0441 b/test/confs/0441
index 45bd0f31e..b354c7c0f 100644
--- a/test/confs/0441
+++ b/test/confs/0441
@@ -1,6 +1,7 @@
 # Exim test configuration 0441
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0442 b/test/confs/0442
index 004e1de6a..30c80ca80 100644
--- a/test/confs/0442
+++ b/test/confs/0442
@@ -3,6 +3,7 @@
 BAD=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0443 b/test/confs/0443
index 5f85d8b49..8b7151e2a 100644
--- a/test/confs/0443
+++ b/test/confs/0443
@@ -1,6 +1,7 @@
 # Exim test configuration 0443
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0444 b/test/confs/0444
index 79f2d1ad6..cef74a9c2 100644
--- a/test/confs/0444
+++ b/test/confs/0444
@@ -1,6 +1,7 @@
 # Exim test configuration 0444
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0445 b/test/confs/0445
index bce937a10..f2461a2f1 100644
--- a/test/confs/0445
+++ b/test/confs/0445
@@ -1,6 +1,7 @@
 # Exim test configuration 0445
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0446 b/test/confs/0446
index 16969e7cd..25f43963b 100644
--- a/test/confs/0446
+++ b/test/confs/0446
@@ -1,6 +1,7 @@
 # Exim test configuration 0446
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0447 b/test/confs/0447
index ecdc5cd41..9aeb79715 100644
--- a/test/confs/0447
+++ b/test/confs/0447
@@ -3,6 +3,7 @@
 INSERT=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0448 b/test/confs/0448
index b42ea187d..997f37859 100644
--- a/test/confs/0448
+++ b/test/confs/0448
@@ -1,6 +1,7 @@
 # Exim test configuration 0448
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0449 b/test/confs/0449
index 1228f0914..932f05c7b 100644
--- a/test/confs/0449
+++ b/test/confs/0449
@@ -1,6 +1,7 @@
 # Exim test configuration 0449
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0450 b/test/confs/0450
index d55634a8f..1304421b4 100644
--- a/test/confs/0450
+++ b/test/confs/0450
@@ -3,6 +3,7 @@
 EXTRA=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0451 b/test/confs/0451
index b95c74bcd..5a1d110fd 100644
--- a/test/confs/0451
+++ b/test/confs/0451
@@ -1,6 +1,7 @@
 # Exim test configuration 0451
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0452 b/test/confs/0452
index 47efb163f..2b54776df 100644
--- a/test/confs/0452
+++ b/test/confs/0452
@@ -1,6 +1,7 @@
 # Exim test configuration 0452
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0453 b/test/confs/0453
index 5ab9f79f2..7aad7a8c2 100644
--- a/test/confs/0453
+++ b/test/confs/0453
@@ -3,6 +3,7 @@
 LIMIT=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0454 b/test/confs/0454
index c91ca1d36..e5a27fbad 100644
--- a/test/confs/0454
+++ b/test/confs/0454
@@ -1,6 +1,7 @@
 # Exim test configuration 0454
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0455 b/test/confs/0455
index 7b1849d70..ce2fcba4d 100644
--- a/test/confs/0455
+++ b/test/confs/0455
@@ -3,6 +3,7 @@
 HOSTS_MAX_TRY=4
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0456 b/test/confs/0456
index c6c8f7ddd..204335050 100644
--- a/test/confs/0456
+++ b/test/confs/0456
@@ -3,6 +3,7 @@
 HOSTS_MAX_TRY=4
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0457 b/test/confs/0457
index 4a8ea4a44..aec4cdf9b 100644
--- a/test/confs/0457
+++ b/test/confs/0457
@@ -1,6 +1,7 @@
 # Exim test configuration 0457
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0458 b/test/confs/0458
index 17ed2b546..d66c561dc 100644
--- a/test/confs/0458
+++ b/test/confs/0458
@@ -1,6 +1,7 @@
 # Exim test configuration 0458
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0459 b/test/confs/0459
index 86350d230..079bcebb7 100644
--- a/test/confs/0459
+++ b/test/confs/0459
@@ -1,6 +1,7 @@
 # Exim test configuration 0459
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0460 b/test/confs/0460
index 505139b3c..43a678916 100644
--- a/test/confs/0460
+++ b/test/confs/0460
@@ -1,6 +1,7 @@
 # Exim test configuration 0460
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0461 b/test/confs/0461
index 033082e89..501327ce8 100644
--- a/test/confs/0461
+++ b/test/confs/0461
@@ -6,6 +6,7 @@ RETRY1=1s
 RETRY2=2s
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0462 b/test/confs/0462
index 87d0adc35..7be6448f6 100644
--- a/test/confs/0462
+++ b/test/confs/0462
@@ -3,6 +3,7 @@
 SELECTOR=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0463 b/test/confs/0463
index 8f3a31101..b273794bc 100644
--- a/test/confs/0463
+++ b/test/confs/0463
@@ -1,6 +1,7 @@
 # Exim test configuration 0463
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0464 b/test/confs/0464
index 49c9d612b..7c6c21f10 100644
--- a/test/confs/0464
+++ b/test/confs/0464
@@ -1,6 +1,7 @@
 # Exim test configuration 0464
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0465 b/test/confs/0465
index 771b67af1..ee4bcfa6b 100644
--- a/test/confs/0465
+++ b/test/confs/0465
@@ -3,6 +3,7 @@
 STD=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0466 b/test/confs/0466
index 1f9986f5f..aa45fd9ae 100644
--- a/test/confs/0466
+++ b/test/confs/0466
@@ -1,6 +1,7 @@
 # Exim test configuration 0466
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0467 b/test/confs/0467
index 14a69f7c6..2af9ad0cf 100644
--- a/test/confs/0467
+++ b/test/confs/0467
@@ -3,6 +3,7 @@
 SRV=smtp
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0468 b/test/confs/0468
index 2ef647dc9..1c46f7cf9 100644
--- a/test/confs/0468
+++ b/test/confs/0468
@@ -3,6 +3,7 @@
 SRV=smtp
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0469 b/test/confs/0469
index 19a345ecc..757e088f3 100644
--- a/test/confs/0469
+++ b/test/confs/0469
@@ -3,6 +3,7 @@
 SRV=smtp
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0470 b/test/confs/0470
index 723041fee..628fd9365 100644
--- a/test/confs/0470
+++ b/test/confs/0470
@@ -3,6 +3,7 @@
 SRV=smtp
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0471 b/test/confs/0471
index 5fee8d5ff..04579824e 100644
--- a/test/confs/0471
+++ b/test/confs/0471
@@ -1,6 +1,7 @@
 # Exim test configuration 0471
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0472 b/test/confs/0472
index 872feb781..e36633840 100644
--- a/test/confs/0472
+++ b/test/confs/0472
@@ -3,6 +3,7 @@
 FUSER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0473 b/test/confs/0473
index ed48ce60c..4b6f0de9f 100644
--- a/test/confs/0473
+++ b/test/confs/0473
@@ -4,6 +4,7 @@ USE_SENDER = ,use_sender
 ACL_RCPT = acl_rcpt
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0474 b/test/confs/0474
index 05aec0f69..559dad512 100644
--- a/test/confs/0474
+++ b/test/confs/0474
@@ -1,6 +1,7 @@
 # Exim test configuration 0474
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0475 b/test/confs/0475
index 9ca486541..6b5284f7f 100644
--- a/test/confs/0475
+++ b/test/confs/0475
@@ -1,6 +1,7 @@
 # Exim test configuration 0475
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0476 b/test/confs/0476
index c8f76b8c8..f9690e44f 100644
--- a/test/confs/0476
+++ b/test/confs/0476
@@ -1,6 +1,7 @@
 # Exim test configuration 0476
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0477 b/test/confs/0477
index ca40ec6be..82bd7dbf7 100644
--- a/test/confs/0477
+++ b/test/confs/0477
@@ -1,6 +1,7 @@
 # Exim test configuration 0477
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0478 b/test/confs/0478
index 4938573d7..2b290b234 100644
--- a/test/confs/0478
+++ b/test/confs/0478
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/SERVER%slog
diff --git a/test/confs/0479 b/test/confs/0479
index 619496b1b..840ebd9ab 100644
--- a/test/confs/0479
+++ b/test/confs/0479
@@ -1,6 +1,7 @@
 # Exim test configuration 0479
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0480 b/test/confs/0480
index b3a585fbb..b13a59f84 100644
--- a/test/confs/0480
+++ b/test/confs/0480
@@ -7,6 +7,7 @@ IP3=V4NET.0.0.3
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/SERVER%slog
diff --git a/test/confs/0481 b/test/confs/0481
index 926db0f37..0e4864f1f 100644
--- a/test/confs/0481
+++ b/test/confs/0481
@@ -1,6 +1,7 @@
 # Exim test configuration 0481
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0482 b/test/confs/0482
index 0a09cec72..911e81c9c 100644
--- a/test/confs/0482
+++ b/test/confs/0482
@@ -1,6 +1,7 @@
 # Exim test configuration 0482
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0483 b/test/confs/0483
index 2fc6139a5..ad3606d7e 100644
--- a/test/confs/0483
+++ b/test/confs/0483
@@ -1,6 +1,7 @@
 # Exim test configuration 0483
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0484 b/test/confs/0484
index 2248f9b3d..3a22e5154 100644
--- a/test/confs/0484
+++ b/test/confs/0484
@@ -1,6 +1,7 @@
 # Exim test configuration 0484
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0485 b/test/confs/0485
index cec0b6a3b..7196acd88 100644
--- a/test/confs/0485
+++ b/test/confs/0485
@@ -1,6 +1,7 @@
 # Exim test configuration 0485
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0486 b/test/confs/0486
index ac1ec8671..fd5805fbc 100644
--- a/test/confs/0486
+++ b/test/confs/0486
@@ -1,6 +1,7 @@
 # Exim test configuration 0486
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0487 b/test/confs/0487
index 066de1a97..04645f49e 100644
--- a/test/confs/0487
+++ b/test/confs/0487
@@ -1,6 +1,7 @@
 # Exim test configuration 0487
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0488 b/test/confs/0488
index 24815fc39..19a5e09c2 100644
--- a/test/confs/0488
+++ b/test/confs/0488
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0489 b/test/confs/0489
index fe34078bb..2a6e2edd0 100644
--- a/test/confs/0489
+++ b/test/confs/0489
@@ -1,6 +1,7 @@
 # Exim test configuration 0489
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0490 b/test/confs/0490
index a46b32c6e..e54e6a937 100644
--- a/test/confs/0490
+++ b/test/confs/0490
@@ -1,6 +1,7 @@
 # Exim test configuration 0490
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0491 b/test/confs/0491
index 934379b54..6aef50293 100644
--- a/test/confs/0491
+++ b/test/confs/0491
@@ -4,6 +4,7 @@ UL=abc@xyz
 REWRITE=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0492 b/test/confs/0492
index b2c481178..55c746e19 100644
--- a/test/confs/0492
+++ b/test/confs/0492
@@ -1,6 +1,7 @@
 # Exim test configuration 0492
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0493 b/test/confs/0493
index e96cff519..f8dfe68f3 100644
--- a/test/confs/0493
+++ b/test/confs/0493
@@ -1,6 +1,7 @@
 # Exim test configuration 0493
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0494 b/test/confs/0494
index ff56ff184..f768631ea 100644
--- a/test/confs/0494
+++ b/test/confs/0494
@@ -1,6 +1,7 @@
 # Exim test configuration 0494
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0495 b/test/confs/0495
index 6af8a6ac7..981a83801 100644
--- a/test/confs/0495
+++ b/test/confs/0495
@@ -1,6 +1,7 @@
 # Exim test configuration 0495
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0496 b/test/confs/0496
index de16b1b5c..779b0545f 100644
--- a/test/confs/0496
+++ b/test/confs/0496
@@ -1,6 +1,7 @@
 # Exim test configuration 0496
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0497 b/test/confs/0497
index 1238e800f..991f95855 100644
--- a/test/confs/0497
+++ b/test/confs/0497
@@ -1,6 +1,7 @@
 # Exim test configuration 0497
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0498 b/test/confs/0498
index c859c64f8..3d5d48195 100644
--- a/test/confs/0498
+++ b/test/confs/0498
@@ -1,6 +1,7 @@
 # Exim test configuration 0498
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0499 b/test/confs/0499
index bd1cbf5d3..9fe3f0da7 100644
--- a/test/confs/0499
+++ b/test/confs/0499
@@ -1,6 +1,7 @@
 # Exim test configuration 0499
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0500 b/test/confs/0500
index a7305353b..4277e91b4 100644
--- a/test/confs/0500
+++ b/test/confs/0500
@@ -1,6 +1,7 @@
 # Exim test configuration 0500
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0501 b/test/confs/0501
index 8a85c835d..8e0d5db93 100644
--- a/test/confs/0501
+++ b/test/confs/0501
@@ -1,6 +1,7 @@
 # Exim test configuration 0501
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0502 b/test/confs/0502
index cf3ceb74f..7694fb743 100644
--- a/test/confs/0502
+++ b/test/confs/0502
@@ -3,6 +3,7 @@
 LAST=accept message = Your message here
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0503 b/test/confs/0503
index c260e6f5d..4842701f0 100644
--- a/test/confs/0503
+++ b/test/confs/0503
@@ -3,6 +3,7 @@
 MSIZE=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0504 b/test/confs/0504
index 5030b55ba..38b94aa56 100644
--- a/test/confs/0504
+++ b/test/confs/0504
@@ -1,6 +1,7 @@
 # Exim test configuration 0504
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0505 b/test/confs/0505
index 4ccba335b..9d17f9d82 100644
--- a/test/confs/0505
+++ b/test/confs/0505
@@ -5,6 +5,7 @@ CONTROL=
 RECIPIENT=acl_smtp_rcpt=accept
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0506 b/test/confs/0506
index 3ffb75d9e..a710de47d 100644
--- a/test/confs/0506
+++ b/test/confs/0506
@@ -4,6 +4,7 @@ ALLOW=allow_filter
 FORBID=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0507 b/test/confs/0507
index 90e6bde3b..8363b9b5f 100644
--- a/test/confs/0507
+++ b/test/confs/0507
@@ -3,6 +3,7 @@
 ERROR_DETAILS=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0508 b/test/confs/0508
index 8cd546337..d8dcda6de 100644
--- a/test/confs/0508
+++ b/test/confs/0508
@@ -1,6 +1,7 @@
 # Exim test configuration 0508
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0509 b/test/confs/0509
index b6978dddf..f4142bb07 100644
--- a/test/confs/0509
+++ b/test/confs/0509
@@ -1,6 +1,7 @@
 # Exim test configuration 0509
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0510 b/test/confs/0510
index a519b9563..ddd079c48 100644
--- a/test/confs/0510
+++ b/test/confs/0510
@@ -1,6 +1,7 @@
 # Exim test configuration 0510
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0511 b/test/confs/0511
index 10018f62d..5f92f69be 100644
--- a/test/confs/0511
+++ b/test/confs/0511
@@ -1,6 +1,7 @@
 # Exim test configuration 0511
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0512 b/test/confs/0512
index a9d049c6b..c49a9e9f7 100644
--- a/test/confs/0512
+++ b/test/confs/0512
@@ -3,6 +3,7 @@
 HARDLIMIT=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0513 b/test/confs/0513
index 11434516e..a617ef4d1 100644
--- a/test/confs/0513
+++ b/test/confs/0513
@@ -3,6 +3,7 @@
 HARDLIMIT=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0514 b/test/confs/0514
index 50bbdea02..14408b37a 100644
--- a/test/confs/0514
+++ b/test/confs/0514
@@ -1,6 +1,7 @@
 # Exim test configuration 0514
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0515 b/test/confs/0515
index eb54ff335..6e65ff8f7 100644
--- a/test/confs/0515
+++ b/test/confs/0515
@@ -1,6 +1,7 @@
 # Exim test configuration 0515
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0516 b/test/confs/0516
index 0c0a6ed30..f2664c155 100644
--- a/test/confs/0516
+++ b/test/confs/0516
@@ -1,6 +1,7 @@
 # Exim test configuration 0516
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0517 b/test/confs/0517
index 5d1fed5aa..e8d9b72e1 100644
--- a/test/confs/0517
+++ b/test/confs/0517
@@ -3,6 +3,7 @@
 ERROR_DETAILS=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0518 b/test/confs/0518
index 5738eebd4..71316f469 100644
--- a/test/confs/0518
+++ b/test/confs/0518
@@ -1,6 +1,7 @@
 # Exim test configuration 0518
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0519 b/test/confs/0519
index 510c698bd..960c12cd6 100644
--- a/test/confs/0519
+++ b/test/confs/0519
@@ -1,6 +1,7 @@
 # Exim test configuration 0519
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0520 b/test/confs/0520
index 2d8bb8f62..5583f2e74 100644
--- a/test/confs/0520
+++ b/test/confs/0520
@@ -1,6 +1,7 @@
 # Exim test configuration 0520
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0521 b/test/confs/0521
index 15555d8b1..3b131d70b 100644
--- a/test/confs/0521
+++ b/test/confs/0521
@@ -1,6 +1,7 @@
 # Exim test configuration 0521
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0522 b/test/confs/0522
index 65fcdbfe2..c7c420536 100644
--- a/test/confs/0522
+++ b/test/confs/0522
@@ -3,6 +3,7 @@
 TIMEOUTDEFER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0523 b/test/confs/0523
index 77a507867..bb95d2e90 100644
--- a/test/confs/0523
+++ b/test/confs/0523
@@ -1,6 +1,7 @@
 # Exim test configuration 0523
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0524 b/test/confs/0524
index 76f0f0ad6..371936a06 100644
--- a/test/confs/0524
+++ b/test/confs/0524
@@ -1,6 +1,7 @@
 # Exim test configuration 0524
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0525 b/test/confs/0525
index bab0c6620..94245f129 100644
--- a/test/confs/0525
+++ b/test/confs/0525
@@ -1,6 +1,7 @@
 # Exim test configuration 0525
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0526 b/test/confs/0526
index 58f2f1a18..6e8f74ffa 100644
--- a/test/confs/0526
+++ b/test/confs/0526
@@ -1,6 +1,7 @@
 # Exim test configuration 0526
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0527 b/test/confs/0527
index 11c98b9e8..0032c46b5 100644
--- a/test/confs/0527
+++ b/test/confs/0527
@@ -1,6 +1,7 @@
 # Exim test configuration 0527
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0528 b/test/confs/0528
index 32176400a..95e92b817 100644
--- a/test/confs/0528
+++ b/test/confs/0528
@@ -1,6 +1,7 @@
 # Exim test configuration 0528
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0529 b/test/confs/0529
index e87c8afd4..06daa2b6a 100644
--- a/test/confs/0529
+++ b/test/confs/0529
@@ -1,6 +1,7 @@
 # Exim test configuration 0529
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0530 b/test/confs/0530
index fa2a2fdf9..f7a3a0867 100644
--- a/test/confs/0530
+++ b/test/confs/0530
@@ -1,6 +1,7 @@
 # Exim test configuration 0530
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0531 b/test/confs/0531
index 192e3edaf..18902415e 100644
--- a/test/confs/0531
+++ b/test/confs/0531
@@ -1,6 +1,7 @@
 # Exim test configuration 0531
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0532 b/test/confs/0532
index a00bb6b4c..9d78acf46 100644
--- a/test/confs/0532
+++ b/test/confs/0532
@@ -3,6 +3,7 @@
 CONNECTCOND=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0533 b/test/confs/0533
index 78e343505..e0fb8bb62 100644
--- a/test/confs/0533
+++ b/test/confs/0533
@@ -1,6 +1,7 @@
 # Exim test configuration 0533
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0534 b/test/confs/0534
index 259e005da..a498a4c69 100644
--- a/test/confs/0534
+++ b/test/confs/0534
@@ -1,6 +1,7 @@
 # Exim test configuration 0534
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0535 b/test/confs/0535
index 1e8f63d85..d0fcab9ec 100644
--- a/test/confs/0535
+++ b/test/confs/0535
@@ -1,6 +1,7 @@
 # Exim test configuration 0535
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0536 b/test/confs/0536
index 9d4a8ae72..e391c9784 100644
--- a/test/confs/0536
+++ b/test/confs/0536
@@ -3,6 +3,7 @@
 FORBID_SMTP_CODE = false
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0537 b/test/confs/0537
index 8609b1e26..6fd8aba31 100644
--- a/test/confs/0537
+++ b/test/confs/0537
@@ -3,6 +3,7 @@
 TRUSTED=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0538 b/test/confs/0538
index 65ec0fc32..6c1e966ef 100644
--- a/test/confs/0538
+++ b/test/confs/0538
@@ -1,6 +1,7 @@
 # Exim test configuration 0538
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0539 b/test/confs/0539
index 6df895759..33d042236 100644
--- a/test/confs/0539
+++ b/test/confs/0539
@@ -1,6 +1,7 @@
 # Exim test configuration 0539
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0540 b/test/confs/0540
index ce469a96c..5e7070125 100644
--- a/test/confs/0540
+++ b/test/confs/0540
@@ -1,6 +1,7 @@
 # Exim test configuration 0540
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0541 b/test/confs/0541
index e5885f41c..213c0155c 100644
--- a/test/confs/0541
+++ b/test/confs/0541
@@ -1,6 +1,7 @@
 # Exim test configuration 0541
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0542 b/test/confs/0542
index f9f2f10f8..b6e57ad40 100644
--- a/test/confs/0542
+++ b/test/confs/0542
@@ -1,6 +1,7 @@
 # Exim test configuration 0542
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0543 b/test/confs/0543
index 25387f89e..6c0fcc214 100644
--- a/test/confs/0543
+++ b/test/confs/0543
@@ -1,6 +1,7 @@
 # Exim test configuration 0543
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0544 b/test/confs/0544
index 23a5f36b2..6eda97ab6 100644
--- a/test/confs/0544
+++ b/test/confs/0544
@@ -1,6 +1,7 @@
 # Exim test configuration 0544
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0545 b/test/confs/0545
index 8cbbf8b45..b323861f5 100644
--- a/test/confs/0545
+++ b/test/confs/0545
@@ -1,6 +1,7 @@
 # Exim test configuration 0545
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0546 b/test/confs/0546
index 7d09866c2..052f841fc 100644
--- a/test/confs/0546
+++ b/test/confs/0546
@@ -4,6 +4,7 @@ HELO_MSG=One line
 RCPT_MSG=RCPT is OK
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0547 b/test/confs/0547
index 70519e667..262e2301b 100644
--- a/test/confs/0547
+++ b/test/confs/0547
@@ -3,6 +3,7 @@
 MAXNM = 100
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0548 b/test/confs/0548
index 3eddcd3ce..41782e74c 100644
--- a/test/confs/0548
+++ b/test/confs/0548
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/SERVER%slog
diff --git a/test/confs/0549 b/test/confs/0549
index 29df1260c..28dc34461 100644
--- a/test/confs/0549
+++ b/test/confs/0549
@@ -1,6 +1,7 @@
 # Exim test configuration 0549
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0550 b/test/confs/0550
index 088bb1535..d394e1f1b 100644
--- a/test/confs/0550
+++ b/test/confs/0550
@@ -1,6 +1,7 @@
 # Exim test configuration 0550
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0551 b/test/confs/0551
index d47bf4d17..2a8753138 100644
--- a/test/confs/0551
+++ b/test/confs/0551
@@ -3,6 +3,7 @@
 LS=+pid
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0552 b/test/confs/0552
index bc8b5ae45..43d7721b8 100644
--- a/test/confs/0552
+++ b/test/confs/0552
@@ -4,6 +4,7 @@ DDF=
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0553 b/test/confs/0553
index f7345484a..2907bcfd3 100644
--- a/test/confs/0553
+++ b/test/confs/0553
@@ -4,6 +4,7 @@ DCF =
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0554 b/test/confs/0554
index 2edb0ff6c..db1c554f7 100644
--- a/test/confs/0554
+++ b/test/confs/0554
@@ -1,6 +1,7 @@
 # Exim test configuration 0554
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0555 b/test/confs/0555
index 64e169dea..d13d23543 100644
--- a/test/confs/0555
+++ b/test/confs/0555
@@ -3,6 +3,7 @@
 FAKE=fakereject
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0556 b/test/confs/0556
index 2708b01fd..bac316961 100644
--- a/test/confs/0556
+++ b/test/confs/0556
@@ -6,6 +6,7 @@ ACL_PREDATA=accept
 PAH=127.0.0.1
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0557 b/test/confs/0557
index 6bfb069d3..052b13cbd 100644
--- a/test/confs/0557
+++ b/test/confs/0557
@@ -6,6 +6,7 @@ HOSTS=
 HAI=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0558 b/test/confs/0558
index 3cdb17fc7..9c8783cab 100644
--- a/test/confs/0558
+++ b/test/confs/0558
@@ -1,6 +1,7 @@
 # Exim test configuration 0558
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0559 b/test/confs/0559
index db1d8b212..061a4aaaf 100644
--- a/test/confs/0559
+++ b/test/confs/0559
@@ -1,6 +1,7 @@
 # Exim test configuration 0559
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0560 b/test/confs/0560
index 68bf16b64..3b79d3d34 100644
--- a/test/confs/0560
+++ b/test/confs/0560
@@ -1,6 +1,7 @@
 # Exim test configuration 0560
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0561 b/test/confs/0561
index c8ca8a72f..1dca521da 100644
--- a/test/confs/0561
+++ b/test/confs/0561
@@ -3,6 +3,7 @@
 QOLL=true
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0562 b/test/confs/0562
index ed0ae2b48..5693c9267 100644
--- a/test/confs/0562
+++ b/test/confs/0562
@@ -1,6 +1,7 @@
 # Exim test configuration 0562
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0563 b/test/confs/0563
index 320fb8b98..459a2c6d9 100644
--- a/test/confs/0563
+++ b/test/confs/0563
@@ -1,7 +1,9 @@
 # Exim test configuration 0563
 
+exim_path = EXIM_PATH
 qualify_domain = testexim.test.ex
 localpartlist aliases = joe:sam:tom
+keep_environment =
 
 begin routers
 
diff --git a/test/confs/0564 b/test/confs/0564
index 443d28500..b9d18a6d8 100644
--- a/test/confs/0564
+++ b/test/confs/0564
@@ -1,6 +1,7 @@
 # Exim test configuration 0564
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0565 b/test/confs/0565
index 979cfc787..a6cf3c4a2 100644
--- a/test/confs/0565
+++ b/test/confs/0565
@@ -1,6 +1,7 @@
 # Exim test configuration 0565
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0566 b/test/confs/0566
index 98df1bf7f..7db8be35d 100644
--- a/test/confs/0566
+++ b/test/confs/0566
@@ -1,6 +1,7 @@
 # Exim test configuration 0566
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0567 b/test/confs/0567
index 5eae157f8..fe375f656 100644
--- a/test/confs/0567
+++ b/test/confs/0567
@@ -3,6 +3,7 @@
 CONNECTCOND=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0569 b/test/confs/0569
index 517c38535..54e606c38 100644
--- a/test/confs/0569
+++ b/test/confs/0569
@@ -1,6 +1,7 @@
 # Exim test configuration 0569
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0570 b/test/confs/0570
index 6cf080737..96c3df4f6 100644
--- a/test/confs/0570
+++ b/test/confs/0570
@@ -4,6 +4,7 @@
 OPTION =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0600 b/test/confs/0600
index d8ff26a6f..3d3f4f135 100644
--- a/test/confs/0600
+++ b/test/confs/0600
@@ -2,6 +2,7 @@
 # utf8clean:string
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/0601 b/test/confs/0601
index c55ac4a1b..3a7bb8b45 100644
--- a/test/confs/0601
+++ b/test/confs/0601
@@ -2,6 +2,7 @@
 # udpsend
 
 exim_path = EXIM_PATH
+keep_environment =
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
 queue_only
diff --git a/test/confs/0602 b/test/confs/0602
index 048175d5e..a5b37bfb3 100644
--- a/test/confs/0602
+++ b/test/confs/0602
@@ -1,6 +1,7 @@
 # Exim test configuration 0602
 
 exim_path = EXIM_PATH
+keep_environment =
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
 gecos_pattern = ""
diff --git a/test/confs/0603 b/test/confs/0603
index bc84cc0d1..91dab7a60 100644
--- a/test/confs/0603
+++ b/test/confs/0603
@@ -8,6 +8,7 @@ untrusted_set_sender = *
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 #primary_hostname = myhost.test.ex
 rfc1413_query_timeout = 0s
diff --git a/test/confs/0604 b/test/confs/0604
index 77376cdcd..cd1133264 100644
--- a/test/confs/0604
+++ b/test/confs/0604
@@ -7,6 +7,7 @@ untrusted_set_sender = *
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 #primary_hostname = myhost.test.ex
 rfc1413_query_timeout = 0s
diff --git a/test/confs/0605 b/test/confs/0605
index 7fce427d5..ec79422e2 100644
--- a/test/confs/0605
+++ b/test/confs/0605
@@ -1,6 +1,7 @@
 # Exim test configuration 0605
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/SERVER%slog
diff --git a/test/confs/0606 b/test/confs/0606
index 538e859de..3876c2738 100644
--- a/test/confs/0606
+++ b/test/confs/0606
@@ -1,6 +1,7 @@
 # Exim test configuration 0606
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/SERVER%slog
diff --git a/test/confs/0607 b/test/confs/0607
index af4d238b5..3c191b477 100644
--- a/test/confs/0607
+++ b/test/confs/0607
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/SERVER%slog
diff --git a/test/confs/0608 b/test/confs/0608
index d04dc369f..390daf1ab 100644
--- a/test/confs/0608
+++ b/test/confs/0608
@@ -1,6 +1,7 @@
 # Exim test configuration 0608
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0609 b/test/confs/0609
index d6ac511fd..e60e612aa 100644
--- a/test/confs/0609
+++ b/test/confs/0609
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/0615 b/test/confs/0615
new file mode 100644
index 000000000..bbfc4978a
--- /dev/null
+++ b/test/confs/0615
@@ -0,0 +1,6 @@
+# exim test configuration 0615
+exim_path = EXIM_PATH
+tls_advertise_hosts =
+perl_startup = $| = 1; \
+	print "Environment visible in Perl:\n"; \
+	print map { "$_=$ENV{$_}\n" } sort keys %ENV;
diff --git a/test/confs/0616 b/test/confs/0616
new file mode 100644
index 000000000..7962d9734
--- /dev/null
+++ b/test/confs/0616
@@ -0,0 +1,8 @@
+# exim test configuration 0616
+exim_path = EXIM_PATH
+keep_environment = ^FOO\d : BAR
+add_environment = ADDED1=added1 : ADDED2=added2
+tls_advertise_hosts =
+perl_startup = $| = 1; \
+	print "Environment visible in Perl:\n"; \
+	print map { "$_=$ENV{$_}\n" } sort keys %ENV;
diff --git a/test/confs/1000 b/test/confs/1000
index 9e7b57ba6..17fdc3662 100644
--- a/test/confs/1000
+++ b/test/confs/1000
@@ -3,6 +3,7 @@
 HL=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/1001 b/test/confs/1001
index aa53c717b..3fcf5014b 100644
--- a/test/confs/1001
+++ b/test/confs/1001
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/1002 b/test/confs/1002
index 99a5866d9..e39b3d887 100644
--- a/test/confs/1002
+++ b/test/confs/1002
@@ -1,6 +1,7 @@
 # Exim test configuration 1002
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/1003 b/test/confs/1003
index 9597b3f26..20daf4338 100644
--- a/test/confs/1003
+++ b/test/confs/1003
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/1005 b/test/confs/1005
index 001cd83e1..913f3861f 100644
--- a/test/confs/1005
+++ b/test/confs/1005
@@ -1,6 +1,7 @@
 # Exim test configuration 1005
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/1006 b/test/confs/1006
index c45c3b308..7fc44c9f9 100644
--- a/test/confs/1006
+++ b/test/confs/1006
@@ -4,6 +4,7 @@ SERVER=
 D6=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/1007 b/test/confs/1007
index bd4f6e950..0960dc3b0 100644
--- a/test/confs/1007
+++ b/test/confs/1007
@@ -5,6 +5,7 @@ IFACE=
 
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/1008 b/test/confs/1008
index 11fd0be57..f6a9a24a9 100644
--- a/test/confs/1008
+++ b/test/confs/1008
@@ -1,6 +1,7 @@
 # Exim test configuration 1008
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/1009 b/test/confs/1009
index 1bbbdd355..888077a52 100644
--- a/test/confs/1009
+++ b/test/confs/1009
@@ -1,6 +1,7 @@
 # Exim test configuration 1009
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/1010 b/test/confs/1010
index ed19a0e21..2ec23a8b8 100644
--- a/test/confs/1010
+++ b/test/confs/1010
@@ -1,6 +1,7 @@
 # Exim test configuration 1010
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2000 b/test/confs/2000
index 7a2d34b2f..c34c4f313 100644
--- a/test/confs/2000
+++ b/test/confs/2000
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2001 b/test/confs/2001
index e2572df3a..f1dc48078 100644
--- a/test/confs/2001
+++ b/test/confs/2001
@@ -4,6 +4,7 @@ OPTION=
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2002 b/test/confs/2002
index b154c82d3..f453d713b 100644
--- a/test/confs/2002
+++ b/test/confs/2002
@@ -1,6 +1,7 @@
 # Exim test configuration 2002
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2003 b/test/confs/2003
index 8631514b8..17a781911 100644
--- a/test/confs/2003
+++ b/test/confs/2003
@@ -1,6 +1,7 @@
 # Exim test configuration 2003
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2004 b/test/confs/2004
index 2979685ec..7fc1ab261 100644
--- a/test/confs/2004
+++ b/test/confs/2004
@@ -1,6 +1,7 @@
 # Exim test configuration 2004
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2005 b/test/confs/2005
index 5b57b60ff..519eb06ab 100644
--- a/test/confs/2005
+++ b/test/confs/2005
@@ -1,6 +1,7 @@
 # Exim test configuration 2005
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2006 b/test/confs/2006
index 8c1a13da2..3808ceeb9 100644
--- a/test/confs/2006
+++ b/test/confs/2006
@@ -1,6 +1,7 @@
 # Exim test configuration 2006
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2007 b/test/confs/2007
index 5bdf76f03..934387512 100644
--- a/test/confs/2007
+++ b/test/confs/2007
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2008 b/test/confs/2008
index 4bad74a1b..a84ced8a2 100644
--- a/test/confs/2008
+++ b/test/confs/2008
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2009 b/test/confs/2009
index 66fadea29..dbc8b871e 100644
--- a/test/confs/2009
+++ b/test/confs/2009
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2010 b/test/confs/2010
index 8aede594a..4c01eb3b6 100644
--- a/test/confs/2010
+++ b/test/confs/2010
@@ -5,6 +5,7 @@ TIMES =
 HOSTS = 127.0.0.1 : HOSTIPV4
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2012 b/test/confs/2012
index 59265d407..5148a90ea 100644
--- a/test/confs/2012
+++ b/test/confs/2012
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2013 b/test/confs/2013
index 331dd09ef..bddd8ac4a 100644
--- a/test/confs/2013
+++ b/test/confs/2013
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2014 b/test/confs/2014
index 562e916fd..f5fc2bb2d 100644
--- a/test/confs/2014
+++ b/test/confs/2014
@@ -3,6 +3,7 @@
 CRL=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2015 b/test/confs/2015
index 734c2834a..cdf3e592b 100644
--- a/test/confs/2015
+++ b/test/confs/2015
@@ -1,6 +1,7 @@
 # Exim test configuration 2015
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2016 b/test/confs/2016
index f58c9af58..3902f15da 100644
--- a/test/confs/2016
+++ b/test/confs/2016
@@ -1,6 +1,7 @@
 # Exim test configuration 2016
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/2017 b/test/confs/2017
index 26b257cd5..b61fba587 100644
--- a/test/confs/2017
+++ b/test/confs/2017
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2018 b/test/confs/2018
index 4afe33b96..6f61f9832 100644
--- a/test/confs/2018
+++ b/test/confs/2018
@@ -1,6 +1,7 @@
 # Exim test configuration 2018
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2019 b/test/confs/2019
index f3ddd4591..4c9c9245d 100644
--- a/test/confs/2019
+++ b/test/confs/2019
@@ -1,6 +1,7 @@
 # Exim test configuration 2019
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2020 b/test/confs/2020
index 7bde46415..241d88335 100644
--- a/test/confs/2020
+++ b/test/confs/2020
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 log_file_path = DIR/spool/log/SERVER%slog
 gecos_pattern = ""
diff --git a/test/confs/2021 b/test/confs/2021
index a441e34a3..4042fae03 100644
--- a/test/confs/2021
+++ b/test/confs/2021
@@ -4,6 +4,7 @@ REQUIRE=#
 TRYCLEAR=#
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2022 b/test/confs/2022
index d11dd5e9e..b4d098c94 100644
--- a/test/confs/2022
+++ b/test/confs/2022
@@ -1,6 +1,7 @@
 # Exim test configuration 2022
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2023 b/test/confs/2023
index 2b5efb5d6..fdfcb287d 100644
--- a/test/confs/2023
+++ b/test/confs/2023
@@ -1,6 +1,7 @@
 # Exim test configuration 2023
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2024 b/test/confs/2024
index 438899444..9d10d006d 100644
--- a/test/confs/2024
+++ b/test/confs/2024
@@ -4,6 +4,7 @@ CERT=DIR/aux-fixed/cert1
 TVC=/dev/null
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2025 b/test/confs/2025
index ccb56dcb2..ac1476b10 100644
--- a/test/confs/2025
+++ b/test/confs/2025
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2026 b/test/confs/2026
index 38900bb53..7da11a528 100644
--- a/test/confs/2026
+++ b/test/confs/2026
@@ -1,6 +1,7 @@
 # Exim test configuration 2026
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2027 b/test/confs/2027
index bd15ea944..6429fec7d 100644
--- a/test/confs/2027
+++ b/test/confs/2027
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2028 b/test/confs/2028
index 38c14f249..71d708d57 100644
--- a/test/confs/2028
+++ b/test/confs/2028
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2029 b/test/confs/2029
index b98cf7348..0fdd8e617 100644
--- a/test/confs/2029
+++ b/test/confs/2029
@@ -1,6 +1,7 @@
 # Exim test configuration 2029
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2030 b/test/confs/2030
index e89e1c99f..80bf30b3e 100644
--- a/test/confs/2030
+++ b/test/confs/2030
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2031 b/test/confs/2031
index 5791316c1..d7e140844 100644
--- a/test/confs/2031
+++ b/test/confs/2031
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2032 b/test/confs/2032
index 002c31391..0ecd87b44 100644
--- a/test/confs/2032
+++ b/test/confs/2032
@@ -1,6 +1,7 @@
 # Exim test configuration 2032 (close copy of 2002)
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2033 b/test/confs/2033
index 9ed671172..944c5e7ca 100644
--- a/test/confs/2033
+++ b/test/confs/2033
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2100 b/test/confs/2100
index dc8ec61ac..df56723d3 100644
--- a/test/confs/2100
+++ b/test/confs/2100
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2101 b/test/confs/2101
index a8de8c06d..c404caadd 100644
--- a/test/confs/2101
+++ b/test/confs/2101
@@ -4,6 +4,7 @@ OPTION=
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2102 b/test/confs/2102
index 804a846bf..cd711ddf2 100644
--- a/test/confs/2102
+++ b/test/confs/2102
@@ -1,6 +1,7 @@
 # Exim test configuration 2102
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2103 b/test/confs/2103
index a9bc0ea7f..fc56df40d 100644
--- a/test/confs/2103
+++ b/test/confs/2103
@@ -1,6 +1,7 @@
 # Exim test configuration 2103
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2104 b/test/confs/2104
index 610a5b722..8118ef889 100644
--- a/test/confs/2104
+++ b/test/confs/2104
@@ -1,6 +1,7 @@
 # Exim test configuration 2104
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2105 b/test/confs/2105
index ec364a3c3..1b9444aa5 100644
--- a/test/confs/2105
+++ b/test/confs/2105
@@ -1,6 +1,7 @@
 # Exim test configuration 2105
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2106 b/test/confs/2106
index d8c685eb5..1857f6c94 100644
--- a/test/confs/2106
+++ b/test/confs/2106
@@ -1,6 +1,7 @@
 # Exim test configuration 2106
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2107 b/test/confs/2107
index b1e1967b7..34fb338bc 100644
--- a/test/confs/2107
+++ b/test/confs/2107
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2108 b/test/confs/2108
index 0388d0cc6..a32e7e46a 100644
--- a/test/confs/2108
+++ b/test/confs/2108
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2109 b/test/confs/2109
index 3e151936f..4987211e1 100644
--- a/test/confs/2109
+++ b/test/confs/2109
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2110 b/test/confs/2110
index 2bd3ed656..da67d097d 100644
--- a/test/confs/2110
+++ b/test/confs/2110
@@ -4,6 +4,7 @@ SERVER =
 HOSTS = 127.0.0.1 : HOSTIPV4
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2111 b/test/confs/2111
index 9abfc7a1a..d69f2a612 100644
--- a/test/confs/2111
+++ b/test/confs/2111
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2112 b/test/confs/2112
index cbd0babc6..8b0c2b7cd 100644
--- a/test/confs/2112
+++ b/test/confs/2112
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2113 b/test/confs/2113
index d9ac50447..3ba6bc620 100644
--- a/test/confs/2113
+++ b/test/confs/2113
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2114 b/test/confs/2114
index a2b1c526f..d856e98bc 100644
--- a/test/confs/2114
+++ b/test/confs/2114
@@ -3,6 +3,7 @@
 CRL=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2115 b/test/confs/2115
index 8142100aa..f28f02260 100644
--- a/test/confs/2115
+++ b/test/confs/2115
@@ -1,6 +1,7 @@
 # Exim test configuration 2115
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2116 b/test/confs/2116
index f5a9509e2..15e9085da 100644
--- a/test/confs/2116
+++ b/test/confs/2116
@@ -1,6 +1,7 @@
 # Exim test configuration 2116
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/2117 b/test/confs/2117
index 8bf80f2b8..8a56c713d 100644
--- a/test/confs/2117
+++ b/test/confs/2117
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2118 b/test/confs/2118
index 7ddc16140..5d2d193f8 100644
--- a/test/confs/2118
+++ b/test/confs/2118
@@ -1,6 +1,7 @@
 # Exim test configuration 2118
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2119 b/test/confs/2119
index 7d382d9ac..f4c228650 100644
--- a/test/confs/2119
+++ b/test/confs/2119
@@ -1,6 +1,7 @@
 # Exim test configuration 2119
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2120 b/test/confs/2120
index c0225e819..e3a0ba1af 100644
--- a/test/confs/2120
+++ b/test/confs/2120
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 log_file_path = DIR/spool/log/SERVER%slog
 gecos_pattern = ""
diff --git a/test/confs/2121 b/test/confs/2121
index a80e8efbb..b50ed1174 100644
--- a/test/confs/2121
+++ b/test/confs/2121
@@ -4,6 +4,7 @@ REQUIRE=#
 TRYCLEAR=#
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2122 b/test/confs/2122
index 510efdaab..477812e3c 100644
--- a/test/confs/2122
+++ b/test/confs/2122
@@ -1,6 +1,7 @@
 # Exim test configuration 2122
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2123 b/test/confs/2123
index 507159c68..228add5d9 100644
--- a/test/confs/2123
+++ b/test/confs/2123
@@ -1,6 +1,7 @@
 # Exim test configuration 2123
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2124 b/test/confs/2124
index 930f4b6d5..2809f6ce9 100644
--- a/test/confs/2124
+++ b/test/confs/2124
@@ -4,6 +4,7 @@ CERT=DIR/aux-fixed/cert1
 TVC=/dev/null
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2125 b/test/confs/2125
index 20f8e1dfa..95b3f0d2d 100644
--- a/test/confs/2125
+++ b/test/confs/2125
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2126 b/test/confs/2126
index 3ea1d9c47..182895a19 100644
--- a/test/confs/2126
+++ b/test/confs/2126
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2127 b/test/confs/2127
index 786134cae..da7d2867f 100644
--- a/test/confs/2127
+++ b/test/confs/2127
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2128 b/test/confs/2128
index 3aa44e8ce..6b43541d5 100644
--- a/test/confs/2128
+++ b/test/confs/2128
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2130 b/test/confs/2130
index 6354b7cc3..6040c1fa6 100644
--- a/test/confs/2130
+++ b/test/confs/2130
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2131 b/test/confs/2131
index 3d83099d1..cb5c4a714 100644
--- a/test/confs/2131
+++ b/test/confs/2131
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2132 b/test/confs/2132
index 11dc3ce21..804cd749d 100644
--- a/test/confs/2132
+++ b/test/confs/2132
@@ -1,6 +1,7 @@
 # Exim test configuration 2132 (close copy of 2102)
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2133 b/test/confs/2133
index 064a97acf..93ad43f04 100644
--- a/test/confs/2133
+++ b/test/confs/2133
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2149 b/test/confs/2149
index 1d649e952..810ab712a 100644
--- a/test/confs/2149
+++ b/test/confs/2149
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2150 b/test/confs/2150
index 3b27f41c9..50df137fb 100644
--- a/test/confs/2150
+++ b/test/confs/2150
@@ -1,6 +1,7 @@
 # Exim test configuration 2150
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2200 b/test/confs/2200
index 3bef13363..47924c56a 100644
--- a/test/confs/2200
+++ b/test/confs/2200
@@ -1,6 +1,7 @@
 # Exim test configuration 2200
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2201 b/test/confs/2201
index ae17b7cb4..dc01308e6 100644
--- a/test/confs/2201
+++ b/test/confs/2201
@@ -1,6 +1,7 @@
 # Exim test configuration 2201
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2202 b/test/confs/2202
index 7380fb012..c25f0fb10 100644
--- a/test/confs/2202
+++ b/test/confs/2202
@@ -3,6 +3,7 @@
 CONNECTCOND=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2250 b/test/confs/2250
index 8edb4ae88..b39f868c5 100644
--- a/test/confs/2250
+++ b/test/confs/2250
@@ -1,6 +1,7 @@
 # Exim test configuration 2250
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2300 b/test/confs/2300
index dbfcc40ee..dd202b8a2 100644
--- a/test/confs/2300
+++ b/test/confs/2300
@@ -1,6 +1,7 @@
 # Exim test configuration 2300
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2400 b/test/confs/2400
index 649688ff7..f2cb9a6c5 100644
--- a/test/confs/2400
+++ b/test/confs/2400
@@ -1,6 +1,7 @@
 # Exim test configuration 2400
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2500 b/test/confs/2500
index 73f82edd2..6cbdff87e 100644
--- a/test/confs/2500
+++ b/test/confs/2500
@@ -1,6 +1,7 @@
 # Exim test configuration 2500
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2501 b/test/confs/2501
index 11fc6acc7..6e0b6ece0 100644
--- a/test/confs/2501
+++ b/test/confs/2501
@@ -1,6 +1,7 @@
 # Exim test configuration 2501
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/2600 b/test/confs/2600
index 11567569a..386f96c57 100644
--- a/test/confs/2600
+++ b/test/confs/2600
@@ -1,6 +1,7 @@
 # Exim test configuration 2600
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3000 b/test/confs/3000
index 42e19cbe5..be0f51b5c 100644
--- a/test/confs/3000
+++ b/test/confs/3000
@@ -1,6 +1,7 @@
 # Exim test configuration 3000
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/3100 b/test/confs/3100
index 4b319e091..70f767201 100644
--- a/test/confs/3100
+++ b/test/confs/3100
@@ -1,6 +1,7 @@
 # Exim test configuration 3100
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/3200 b/test/confs/3200
index e86c6f90e..7e96d1590 100644
--- a/test/confs/3200
+++ b/test/confs/3200
@@ -1,6 +1,7 @@
 # Exim test configuration 3200
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3201 b/test/confs/3201
index 53b274b90..a77f4711e 100644
--- a/test/confs/3201
+++ b/test/confs/3201
@@ -1,6 +1,7 @@
 # Exim test configuration 3201
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3202 b/test/confs/3202
index ef4967e5e..2f560b124 100644
--- a/test/confs/3202
+++ b/test/confs/3202
@@ -1,6 +1,7 @@
 # Exim test configuration 3202
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3203 b/test/confs/3203
index 79ace9ea3..39995c7b8 100644
--- a/test/confs/3203
+++ b/test/confs/3203
@@ -1,6 +1,7 @@
 # Exim test configuration 3203
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3204 b/test/confs/3204
index 58ca672ca..139c06090 100644
--- a/test/confs/3204
+++ b/test/confs/3204
@@ -1,6 +1,7 @@
 # Exim test configuration 3204
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3205 b/test/confs/3205
index d2f7ae5c9..554e1e2f2 100644
--- a/test/confs/3205
+++ b/test/confs/3205
@@ -1,6 +1,7 @@
 # Exim test configuration 3205
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3206 b/test/confs/3206
index a0b4793db..982ac7666 100644
--- a/test/confs/3206
+++ b/test/confs/3206
@@ -1,6 +1,7 @@
 # Exim test configuration 3206
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/3207 b/test/confs/3207
index 5229e514f..5156bd95f 100644
--- a/test/confs/3207
+++ b/test/confs/3207
@@ -1,6 +1,7 @@
 # Exim test configuration 3207
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/3208 b/test/confs/3208
index 6bba1ed12..93fbe1820 100644
--- a/test/confs/3208
+++ b/test/confs/3208
@@ -1,6 +1,7 @@
 # Exim test configuration 3208
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/3209 b/test/confs/3209
index 77db04192..3699de43e 100644
--- a/test/confs/3209
+++ b/test/confs/3209
@@ -1,6 +1,7 @@
 # Exim test configuration 3209
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 qualify_domain = test.ex
diff --git a/test/confs/3210 b/test/confs/3210
index ba9f3aa07..044a028d3 100644
--- a/test/confs/3210
+++ b/test/confs/3210
@@ -1,6 +1,7 @@
 # Exim test configuration 3210
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3211 b/test/confs/3211
index 161e869e7..b4eac15d7 100644
--- a/test/confs/3211
+++ b/test/confs/3211
@@ -1,6 +1,7 @@
 # Exim test configuration 3211
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3212 b/test/confs/3212
index e9d0bd60c..c56e23759 100644
--- a/test/confs/3212
+++ b/test/confs/3212
@@ -1,6 +1,7 @@
 # Exim test configuration 3212
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3213 b/test/confs/3213
index 1237d295f..0c3d669b5 100644
--- a/test/confs/3213
+++ b/test/confs/3213
@@ -1,6 +1,7 @@
 # Exim test configuration 3213
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3300 b/test/confs/3300
index 8b1764650..b20ee53fe 100644
--- a/test/confs/3300
+++ b/test/confs/3300
@@ -1,6 +1,7 @@
 # Exim test configuration 3300
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3400 b/test/confs/3400
index 7ec7fc3be..496196daa 100644
--- a/test/confs/3400
+++ b/test/confs/3400
@@ -1,6 +1,7 @@
 # Exim test configuration 3400
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3401 b/test/confs/3401
index 09b09edba..1e5f87fcb 100644
--- a/test/confs/3401
+++ b/test/confs/3401
@@ -1,6 +1,7 @@
 # Exim test configuration 3401
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3402 b/test/confs/3402
index 299603537..d4c9dafeb 100644
--- a/test/confs/3402
+++ b/test/confs/3402
@@ -1,6 +1,7 @@
 # Exim test configuration 3402
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3403 b/test/confs/3403
index 2f12a56f3..514e6e3f4 100644
--- a/test/confs/3403
+++ b/test/confs/3403
@@ -1,6 +1,7 @@
 # Exim test configuration 3403
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3404 b/test/confs/3404
index c804d9386..74765a6bc 100644
--- a/test/confs/3404
+++ b/test/confs/3404
@@ -1,6 +1,7 @@
 # Exim test configuration 3404
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3405 b/test/confs/3405
index 6b9718054..1ecd2a9bc 100644
--- a/test/confs/3405
+++ b/test/confs/3405
@@ -1,6 +1,7 @@
 # Exim test configuration 3405
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3406 b/test/confs/3406
index 115133123..1dc7c9562 100644
--- a/test/confs/3406
+++ b/test/confs/3406
@@ -1,6 +1,7 @@
 # Exim test configuration 3406
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3407 b/test/confs/3407
index 443376e6a..2c7d40735 100644
--- a/test/confs/3407
+++ b/test/confs/3407
@@ -3,6 +3,7 @@
 OPTION=server_condition = xxx
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/3408 b/test/confs/3408
index c8b094073..2c8c6b6af 100644
--- a/test/confs/3408
+++ b/test/confs/3408
@@ -1,6 +1,7 @@
 # Exim test configuration 3408
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/3409 b/test/confs/3409
index 11355fcec..d4726a73e 100644
--- a/test/confs/3409
+++ b/test/confs/3409
@@ -1,6 +1,7 @@
 # Exim test configuration 3409
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/3410 b/test/confs/3410
index a102d40b6..3371b4e12 100644
--- a/test/confs/3410
+++ b/test/confs/3410
@@ -1,6 +1,7 @@
 # Exim test configuration 3410
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3411 b/test/confs/3411
index 84a24166c..c7745e86b 100644
--- a/test/confs/3411
+++ b/test/confs/3411
@@ -1,6 +1,7 @@
 # Exim test configuration 3411
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3412 b/test/confs/3412
index 09832d895..889256d98 100644
--- a/test/confs/3412
+++ b/test/confs/3412
@@ -1,6 +1,7 @@
 # Exim test configuration 3412
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3413 b/test/confs/3413
index a6b76d16d..c3a682676 100644
--- a/test/confs/3413
+++ b/test/confs/3413
@@ -1,6 +1,7 @@
 # Exim test configuration 3413
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3414 b/test/confs/3414
index 3b410c104..80fc96216 100644
--- a/test/confs/3414
+++ b/test/confs/3414
@@ -4,6 +4,7 @@ ACL=
 S=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3415 b/test/confs/3415
index 12be95e5b..47f3281c2 100644
--- a/test/confs/3415
+++ b/test/confs/3415
@@ -5,6 +5,7 @@ SUBMISSION_OPTIONS=
 AUTH_ID_DOMAIN=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3416 b/test/confs/3416
index 6785dede0..2b3f2afaf 100644
--- a/test/confs/3416
+++ b/test/confs/3416
@@ -2,6 +2,7 @@
 # Recipient callout with AUTH
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3450 b/test/confs/3450
index 26a277a98..19e3a6b27 100644
--- a/test/confs/3450
+++ b/test/confs/3450
@@ -1,6 +1,7 @@
 # Exim test configuration 3450
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3451 b/test/confs/3451
index 052469d14..1c0a478cd 100644
--- a/test/confs/3451
+++ b/test/confs/3451
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3452 b/test/confs/3452
index 6e411f521..b36e1fa04 100644
--- a/test/confs/3452
+++ b/test/confs/3452
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3453 b/test/confs/3453
index 0a2a068a7..199db1590 100644
--- a/test/confs/3453
+++ b/test/confs/3453
@@ -3,6 +3,7 @@
 REMEMBER=false
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3454 b/test/confs/3454
index 727a71d86..b45b9183c 100644
--- a/test/confs/3454
+++ b/test/confs/3454
@@ -1,6 +1,7 @@
 # Exim test configuration 3454
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3455 b/test/confs/3455
index cf7caed4f..3d33fb650 100644
--- a/test/confs/3455
+++ b/test/confs/3455
@@ -3,6 +3,7 @@
 HOSTS_AVOID_TLS=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3460 b/test/confs/3460
index 59da15cb8..84e585a5c 100644
--- a/test/confs/3460
+++ b/test/confs/3460
@@ -1,6 +1,7 @@
 # Exim test configuration 3460
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3461 b/test/confs/3461
index c93abddd7..45a28fd62 100644
--- a/test/confs/3461
+++ b/test/confs/3461
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3462 b/test/confs/3462
index f21651e5e..10b6cb952 100644
--- a/test/confs/3462
+++ b/test/confs/3462
@@ -3,6 +3,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3463 b/test/confs/3463
index 1933b8a48..f6228f979 100644
--- a/test/confs/3463
+++ b/test/confs/3463
@@ -3,6 +3,7 @@
 REMEMBER=false
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3464 b/test/confs/3464
index 79f0df297..7f2d2777d 100644
--- a/test/confs/3464
+++ b/test/confs/3464
@@ -1,6 +1,7 @@
 # Exim test configuration 3464
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3465 b/test/confs/3465
index 9486f5016..1b73148cc 100644
--- a/test/confs/3465
+++ b/test/confs/3465
@@ -3,6 +3,7 @@
 HOSTS_AVOID_TLS=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3500 b/test/confs/3500
index 8853e9440..571a43bd8 100644
--- a/test/confs/3500
+++ b/test/confs/3500
@@ -1,6 +1,7 @@
 # Exim test configuration 3500
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3501 b/test/confs/3501
index 521bb789f..fbcf2db22 100644
--- a/test/confs/3501
+++ b/test/confs/3501
@@ -1,6 +1,7 @@
 # Exim test configuration 3501
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3600 b/test/confs/3600
index c37ccf14d..50dc99780 100644
--- a/test/confs/3600
+++ b/test/confs/3600
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/3700 b/test/confs/3700
index 1565b5f79..667131e3f 100644
--- a/test/confs/3700
+++ b/test/confs/3700
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4000 b/test/confs/4000
index 822f15f78..3f757e018 100644
--- a/test/confs/4000
+++ b/test/confs/4000
@@ -1,6 +1,7 @@
 # Exim test configuration 4000
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4001 b/test/confs/4001
index 00406b4ee..96ac7104f 100644
--- a/test/confs/4001
+++ b/test/confs/4001
@@ -2,6 +2,7 @@
 # Content-scan: f-protd interface
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4002 b/test/confs/4002
index cc0d05ebb..496c4527f 100644
--- a/test/confs/4002
+++ b/test/confs/4002
@@ -2,6 +2,7 @@
 # Content-scan: aveserver interface
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4003 b/test/confs/4003
index 7fbd61ba0..dc10a6aca 100644
--- a/test/confs/4003
+++ b/test/confs/4003
@@ -2,6 +2,7 @@
 # Content-scan: fsecure interface
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4004 b/test/confs/4004
index 84471acac..9adcaf95b 100644
--- a/test/confs/4004
+++ b/test/confs/4004
@@ -2,6 +2,7 @@
 # Content-scan: sophie interface
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4005 b/test/confs/4005
index fd15dfc04..933f81e99 100644
--- a/test/confs/4005
+++ b/test/confs/4005
@@ -5,6 +5,7 @@ OPT=
 CONTROL=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4006 b/test/confs/4006
index 8ac65a584..963714f7e 100644
--- a/test/confs/4006
+++ b/test/confs/4006
@@ -2,6 +2,7 @@
 # Content-scan: avast interface
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4007 b/test/confs/4007
index 110a590f0..7fecb965a 100644
--- a/test/confs/4007
+++ b/test/confs/4007
@@ -2,6 +2,7 @@
 # Content-scan: cmsline interface
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4008 b/test/confs/4008
index 55c290333..64be4d590 100644
--- a/test/confs/4008
+++ b/test/confs/4008
@@ -2,6 +2,7 @@
 # Content-scan: rspamd interface
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4009 b/test/confs/4009
index 2799575ea..64d23053c 100644
--- a/test/confs/4009
+++ b/test/confs/4009
@@ -4,6 +4,7 @@
 OPT= 127.0.0.1 7833
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4020 b/test/confs/4020
index 8a3a91fcc..4b355a046 100644
--- a/test/confs/4020
+++ b/test/confs/4020
@@ -3,7 +3,8 @@
 OPT =
 
 exim_path = EXIM_PATH
-host_lookup_order = bydns
+keep_environment =
+hide host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/4028 b/test/confs/4028
index 3174e7543..de11185bb 100644
--- a/test/confs/4028
+++ b/test/confs/4028
@@ -5,6 +5,7 @@ OPT =
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4029 b/test/confs/4029
index ae4e71850..b8f7ec45a 100644
--- a/test/confs/4029
+++ b/test/confs/4029
@@ -5,6 +5,7 @@ OPT =
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/4100 b/test/confs/4100
index 180c6f4d3..9fac4d951 100644
--- a/test/confs/4100
+++ b/test/confs/4100
@@ -1,6 +1,7 @@
 # Exim test configuration 4100
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/4200 b/test/confs/4200
index c0bf41aa8..ad9dd1470 100644
--- a/test/confs/4200
+++ b/test/confs/4200
@@ -1,6 +1,7 @@
 # Exim test configuration 4200
 
 exim_path = EXIM_PATH
+keep_environment =
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
 gecos_name = CALLER_NAME
diff --git a/test/confs/4201 b/test/confs/4201
index 6a16f4c6f..c6f18ed21 100644
--- a/test/confs/4201
+++ b/test/confs/4201
@@ -7,6 +7,7 @@ INSERT =
 SUB =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/4211 b/test/confs/4211
index 085fecc72..a5cc47ad1 100644
--- a/test/confs/4211
+++ b/test/confs/4211
@@ -5,6 +5,7 @@ OPTION = *
 CONTROL =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/4221 b/test/confs/4221
index 085fecc72..a5cc47ad1 100644
--- a/test/confs/4221
+++ b/test/confs/4221
@@ -5,6 +5,7 @@ OPTION = *
 CONTROL =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/4800 b/test/confs/4800
index a257eff41..8a343d8e5 100644
--- a/test/confs/4800
+++ b/test/confs/4800
@@ -1,3 +1,6 @@
+# exim test configuration 4800
+exim_path = EXIM_PATH
+keep_environment =
 
 begin routers
   dnslookup:
diff --git a/test/confs/4801 b/test/confs/4801
index 86ec20698..ea22dc4d1 100644
--- a/test/confs/4801
+++ b/test/confs/4801
@@ -1,3 +1,6 @@
+# exim test configuration 4801
+exim_path = EXIM_PATH
+keep_environment =
 
 begin routers
   dnslookup:
diff --git a/test/confs/4803 b/test/confs/4803
index fa18e2c32..607cb309f 100644
--- a/test/confs/4803
+++ b/test/confs/4803
@@ -1,3 +1,6 @@
+# exim test configuration 4803
+exim_path = EXIM_PATH
+keep_environment =
 dns_trust_aa = *
 
 begin routers
diff --git a/test/confs/4950 b/test/confs/4950
index 373aafe2b..24652dd00 100644
--- a/test/confs/4950
+++ b/test/confs/4950
@@ -1,6 +1,7 @@
 # Exim test configuration 4950
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5000 b/test/confs/5000
index f46ba25a7..93b00309f 100644
--- a/test/confs/5000
+++ b/test/confs/5000
@@ -1,6 +1,7 @@
 # Exim test configuration 5000
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5001 b/test/confs/5001
index 9e497261d..c26642338 100644
--- a/test/confs/5001
+++ b/test/confs/5001
@@ -1,6 +1,7 @@
 # Exim test configuration 5001
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5002 b/test/confs/5002
index a21bd7a82..8dd7bf26d 100644
--- a/test/confs/5002
+++ b/test/confs/5002
@@ -1,6 +1,7 @@
 # Exim test configuration 5002
 
 exim_path = EXIM_PATH
+keep_environment =
 primary_hostname = myhost.test.ex
 host_lookup_order = bydns
 spool_directory = DIR/spool
diff --git a/test/confs/5003 b/test/confs/5003
index 1c0d7639d..d3b0c25d3 100644
--- a/test/confs/5003
+++ b/test/confs/5003
@@ -1,6 +1,7 @@
 # Exim test configuration 5003
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5004 b/test/confs/5004
index eb1a874d9..7df0fc8c8 100644
--- a/test/confs/5004
+++ b/test/confs/5004
@@ -1,6 +1,7 @@
 # Exim test configuration 5004
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5005 b/test/confs/5005
index d38387a9e..19c4a4a82 100644
--- a/test/confs/5005
+++ b/test/confs/5005
@@ -3,6 +3,7 @@
 QUOTA=500
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5006 b/test/confs/5006
index 24f0361ea..b5c341804 100644
--- a/test/confs/5006
+++ b/test/confs/5006
@@ -1,6 +1,7 @@
 # Exim test configuration 5006
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5007 b/test/confs/5007
index 59df86783..836ad2aff 100644
--- a/test/confs/5007
+++ b/test/confs/5007
@@ -3,6 +3,7 @@
 QUOTA=500
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5008 b/test/confs/5008
index a9e7a7246..e34bcea9c 100644
--- a/test/confs/5008
+++ b/test/confs/5008
@@ -3,6 +3,7 @@
 QUOTA_FILECOUNT=0
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5009 b/test/confs/5009
index 8da6c6e1b..779773f89 100644
--- a/test/confs/5009
+++ b/test/confs/5009
@@ -3,6 +3,7 @@
 SUB=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5050 b/test/confs/5050
index acda86a55..38c2e8f94 100644
--- a/test/confs/5050
+++ b/test/confs/5050
@@ -1,6 +1,7 @@
 # Exim test configuration 5050
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5100 b/test/confs/5100
index 4f4df39de..4005e853d 100644
--- a/test/confs/5100
+++ b/test/confs/5100
@@ -3,6 +3,7 @@
 IGNORE_QUOTA=FALSE
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5101 b/test/confs/5101
index a3bd84f91..4d1706c41 100644
--- a/test/confs/5101
+++ b/test/confs/5101
@@ -1,6 +1,7 @@
 # Exim test configuration 5101
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5102 b/test/confs/5102
index 8d69e3b20..5af90f677 100644
--- a/test/confs/5102
+++ b/test/confs/5102
@@ -1,6 +1,7 @@
 # Exim test configuration 5102
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5103 b/test/confs/5103
index e195052e0..0714ba3c0 100644
--- a/test/confs/5103
+++ b/test/confs/5103
@@ -1,6 +1,7 @@
 # Exim test configuration 5103
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5200 b/test/confs/5200
index aa9997b7f..03da6fda2 100644
--- a/test/confs/5200
+++ b/test/confs/5200
@@ -1,6 +1,7 @@
 # Exim test configuration 5200
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5201 b/test/confs/5201
index 58af62e6c..fe77484b1 100644
--- a/test/confs/5201
+++ b/test/confs/5201
@@ -1,6 +1,7 @@
 # Exim test configuration 5201
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5202 b/test/confs/5202
index 87bc9d0af..5752e178c 100644
--- a/test/confs/5202
+++ b/test/confs/5202
@@ -1,6 +1,7 @@
 # Exim test configuration 5202
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5203 b/test/confs/5203
index 0a11110b3..5d951bd26 100644
--- a/test/confs/5203
+++ b/test/confs/5203
@@ -1,6 +1,7 @@
 # Exim test configuration 5203
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5204 b/test/confs/5204
index 5cf753aeb..ca97ea6e4 100644
--- a/test/confs/5204
+++ b/test/confs/5204
@@ -3,6 +3,7 @@
 COMMAND_USER=EXIMUSER
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5205 b/test/confs/5205
index 5048b1d59..3b715473a 100644
--- a/test/confs/5205
+++ b/test/confs/5205
@@ -1,6 +1,7 @@
 # Exim test configuration 5205
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5206 b/test/confs/5206
index 7d1c56253..b7c7ae0b8 100644
--- a/test/confs/5206
+++ b/test/confs/5206
@@ -1,6 +1,7 @@
 # Exim test configuration 5206
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5207 b/test/confs/5207
index 4fb4f767e..373b18626 100644
--- a/test/confs/5207
+++ b/test/confs/5207
@@ -1,6 +1,7 @@
 # Exim test configuration 5207
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5208 b/test/confs/5208
index 1cd500ff7..3ee81df83 100644
--- a/test/confs/5208
+++ b/test/confs/5208
@@ -4,6 +4,7 @@ LIST=
 SELF=freeze
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5209 b/test/confs/5209
index 21e27390d..2b2121ec8 100644
--- a/test/confs/5209
+++ b/test/confs/5209
@@ -1,6 +1,7 @@
 # Exim test configuration 5209
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5300 b/test/confs/5300
index 70de5631c..7840341a3 100644
--- a/test/confs/5300
+++ b/test/confs/5300
@@ -3,6 +3,7 @@
 ALLOW=true
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5301 b/test/confs/5301
index 0c130a04f..25caa299c 100644
--- a/test/confs/5301
+++ b/test/confs/5301
@@ -3,6 +3,7 @@
 D6=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5400 b/test/confs/5400
index 79465df80..e7a5c074f 100644
--- a/test/confs/5400
+++ b/test/confs/5400
@@ -1,6 +1,7 @@
 # Exim test configuration 5400
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5401 b/test/confs/5401
index 5978b7fa0..917c4ea76 100644
--- a/test/confs/5401
+++ b/test/confs/5401
@@ -1,6 +1,7 @@
 # Exim test configuration 5401
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5410 b/test/confs/5410
index 735b52932..4c59adb95 100644
--- a/test/confs/5410
+++ b/test/confs/5410
@@ -1,6 +1,7 @@
 # Exim test configuration 5410
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5420 b/test/confs/5420
index f8379c7bd..bb559116e 100644
--- a/test/confs/5420
+++ b/test/confs/5420
@@ -1,6 +1,7 @@
 # Exim test configuration 5420
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5500 b/test/confs/5500
index 6b9e328ba..5369bf6fd 100644
--- a/test/confs/5500
+++ b/test/confs/5500
@@ -4,6 +4,7 @@
 LOG_SELECTOR=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5510 b/test/confs/5510
index 083394ee5..fb7d404ac 100644
--- a/test/confs/5510
+++ b/test/confs/5510
@@ -4,6 +4,7 @@
 LOG_SELECTOR=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5600 b/test/confs/5600
index 2dc1090df..c05bcfcf9 100644
--- a/test/confs/5600
+++ b/test/confs/5600
@@ -4,6 +4,7 @@
 CRL=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = server1.example.com
 spool_directory = DIR/spool
diff --git a/test/confs/5601 b/test/confs/5601
index 785f0c64f..267f4e071 100644
--- a/test/confs/5601
+++ b/test/confs/5601
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment  = ^EXIM_TESTHARNESS_DISABLE_[O]CSPVALIDITYCHECK$
 host_lookup_order = bydns
 primary_hostname = server1.example.com
 spool_directory = DIR/spool
diff --git a/test/confs/5608 b/test/confs/5608
index 311cc1299..32b4e5f81 100644
--- a/test/confs/5608
+++ b/test/confs/5608
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment = ^EXIM_TESTHARNESS_DISABLE_[O]CSPVALIDITYCHECK$
 host_lookup_order = bydns
 primary_hostname = server1.example.com
 spool_directory = DIR/spool
diff --git a/test/confs/5650 b/test/confs/5650
index bf4462be3..8d07b7a9c 100644
--- a/test/confs/5650
+++ b/test/confs/5650
@@ -4,6 +4,7 @@
 CRL=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = server1.example.com
 spool_directory = DIR/spool
diff --git a/test/confs/5651 b/test/confs/5651
index cffa4107c..fe9d3bceb 100644
--- a/test/confs/5651
+++ b/test/confs/5651
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = server1.example.com
 spool_directory = DIR/spool
diff --git a/test/confs/5658 b/test/confs/5658
index 10938e1f9..63b462313 100644
--- a/test/confs/5658
+++ b/test/confs/5658
@@ -4,6 +4,7 @@
 SERVER =
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = server1.example.com
 spool_directory = DIR/spool
diff --git a/test/confs/5700 b/test/confs/5700
index 4d0abea55..bc2cf347e 100644
--- a/test/confs/5700
+++ b/test/confs/5700
@@ -1,6 +1,7 @@
 # Exim test configuration 5700
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/5750 b/test/confs/5750
index 13ee1498f..3a66364d0 100644
--- a/test/confs/5750
+++ b/test/confs/5750
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5760 b/test/confs/5760
index 303420f3d..4a6152402 100644
--- a/test/confs/5760
+++ b/test/confs/5760
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5800 b/test/confs/5800
index 66facecb3..ba4db9ab6 100644
--- a/test/confs/5800
+++ b/test/confs/5800
@@ -2,6 +2,7 @@
 # DANE common
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5820 b/test/confs/5820
index 1b487026f..9ee830910 100644
--- a/test/confs/5820
+++ b/test/confs/5820
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5840 b/test/confs/5840
index 4f468a384..e83919005 100644
--- a/test/confs/5840
+++ b/test/confs/5840
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/5860 b/test/confs/5860
index d3f6db3c4..eae2edb0d 100644
--- a/test/confs/5860
+++ b/test/confs/5860
@@ -4,6 +4,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9000 b/test/confs/9000
index 8f55b92e2..695d1d17b 100644
--- a/test/confs/9000
+++ b/test/confs/9000
@@ -3,6 +3,7 @@
 LDAPSERVERS=
 
 exim_path = EXIM_PATH
+keep_environment = LDAPTLS_REQCERT
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9001 b/test/confs/9001
index 3f0b52362..be3d2c121 100644
--- a/test/confs/9001
+++ b/test/confs/9001
@@ -1,6 +1,7 @@
 # Exim test configuration 9001
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9100 b/test/confs/9100
index 0285c801a..564d38847 100644
--- a/test/confs/9100
+++ b/test/confs/9100
@@ -1,6 +1,7 @@
 # Exim test configuration 9100
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9200 b/test/confs/9200
index 1aac8b102..6a07be672 100644
--- a/test/confs/9200
+++ b/test/confs/9200
@@ -3,6 +3,7 @@
 SERVERS=localhost/test/ph10/
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9300 b/test/confs/9300
index 05e88414d..0c559f59b 100644
--- a/test/confs/9300
+++ b/test/confs/9300
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9350 b/test/confs/9350
index e312ee609..f3baf2bbe 100644
--- a/test/confs/9350
+++ b/test/confs/9350
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9400 b/test/confs/9400
index 32fe5c90b..815139cc9 100644
--- a/test/confs/9400
+++ b/test/confs/9400
@@ -1,6 +1,7 @@
 # Exim test configuration 9400
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9401 b/test/confs/9401
index cbd030fbe..234a672db 100644
--- a/test/confs/9401
+++ b/test/confs/9401
@@ -1,6 +1,7 @@
 # Exim test configuration 9401
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/9402 b/test/confs/9402
index 65f8926c3..c80c6cb30 100644
--- a/test/confs/9402
+++ b/test/confs/9402
@@ -3,6 +3,7 @@
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9450 b/test/confs/9450
index 43fbde00c..205bb9146 100644
--- a/test/confs/9450
+++ b/test/confs/9450
@@ -1,6 +1,7 @@
 # Exim test configuration 9450
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9900 b/test/confs/9900
index eba2f900c..d4572109f 100644
--- a/test/confs/9900
+++ b/test/confs/9900
@@ -1,6 +1,7 @@
 # Exim test configuration 9900
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/9901 b/test/confs/9901
index a49153ba0..39a966edb 100644
--- a/test/confs/9901
+++ b/test/confs/9901
@@ -4,6 +4,7 @@ COM=
 SERVER=
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
diff --git a/test/confs/9902 b/test/confs/9902
index b252c4cbb..4c41d8c5f 100644
--- a/test/confs/9902
+++ b/test/confs/9902
@@ -5,6 +5,7 @@
 ORDER=
 
 exim_path = EXIM_PATH
+keep_environment =
 primary_hostname = myhost.test.ex
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/confs/9903 b/test/confs/9903
index 39db98713..6ecff0822 100644
--- a/test/confs/9903
+++ b/test/confs/9903
@@ -1,6 +1,7 @@
 # Exim test configuration 9903
 
 exim_path = EXIM_PATH
+keep_environment =
 host_lookup_order = bydns
 spool_directory = DIR/spool
 log_file_path = DIR/spool/log/%slog
diff --git a/test/paniclog/0013 b/test/paniclog/0013
index c9eb6412c..74c607a1b 100644
--- a/test/paniclog/0013
+++ b/test/paniclog/0013
@@ -1,2 +1,2 @@
-1999-03-02 09:44:33 Exim configuration error in line 14 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 16 of TESTSUITE/test-config:
   extra characters follow string value for relay_hosts
diff --git a/test/paniclog/0148 b/test/paniclog/0148
index a2e75ff50..d9985aabd 100644
--- a/test/paniclog/0148
+++ b/test/paniclog/0148
@@ -1,2 +1,2 @@
-1999-03-02 09:44:33 Exim configuration error in line 16 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 18 of TESTSUITE/test-config:
   missing quote at end of string value for hold_domains
diff --git a/test/paniclog/0236 b/test/paniclog/0236
index 003f31154..6b472bcd8 100644
--- a/test/paniclog/0236
+++ b/test/paniclog/0236
@@ -1,2 +1,2 @@
-1999-03-02 09:44:33 Exim configuration error in line 14 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 16 of TESTSUITE/test-config:
   macro name too long (maximum is 63 characters)
diff --git a/test/paniclog/0290 b/test/paniclog/0290
index b519863d3..40585c690 100644
--- a/test/paniclog/0290
+++ b/test/paniclog/0290
@@ -1,2 +1,2 @@
-1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 28 of TESTSUITE/test-config:
   .include specifies a non-absolute path "non/absolute"
diff --git a/test/paniclog/0348 b/test/paniclog/0348
index f901fd4cf..d18082f4c 100644
--- a/test/paniclog/0348
+++ b/test/paniclog/0348
@@ -1,8 +1,8 @@
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
diff --git a/test/paniclog/0415 b/test/paniclog/0415
index 7ead00c8e..4e5fcc9c6 100644
--- a/test/paniclog/0415
+++ b/test/paniclog/0415
@@ -1,20 +1,20 @@
-1999-03-02 09:44:33 Exim configuration error in line 19 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 21 of TESTSUITE/test-config:
   absolute value of integer "4000000M" is too large (overflow)
-1999-03-02 09:44:33 Exim configuration error in line 19 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 21 of TESTSUITE/test-config:
   extra characters follow integer value for check_spool_space
-1999-03-02 09:44:33 Exim configuration error in line 20 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 22 of TESTSUITE/test-config:
   integer "4000000000.123" is too large (overflow)
-1999-03-02 09:44:33 Exim configuration error in line 20 of TESTSUITE/test-config:
-  integer "4000000.123" is too large (overflow)
 1999-03-02 09:44:33 Exim configuration error in line 22 of TESTSUITE/test-config:
+  integer "4000000.123" is too large (overflow)
+1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
   absolute value of integer "999999999999999999" is too large (overflow)
-1999-03-02 09:44:33 Exim configuration error in line 22 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
   absolute value of integer "999999999K" is too large (overflow)
-1999-03-02 09:44:33 Exim configuration error in line 22 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
   absolute value of integer "999999M" is too large (overflow)
-1999-03-02 09:44:33 Exim configuration error in line 22 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
   extra characters follow integer value for finduser_retries
-1999-03-02 09:44:33 Exim configuration error in line 22 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
   integer expected for finduser_retries
-1999-03-02 09:44:33 Exim configuration error in line 22 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
   extra characters follow integer value for finduser_retries
diff --git a/test/paniclog/0442 b/test/paniclog/0442
index 2dd90dd48..f8afd85ea 100644
--- a/test/paniclog/0442
+++ b/test/paniclog/0442
@@ -1,2 +1,2 @@
-1999-03-02 09:44:33 Exim configuration error in line 42 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 44 of TESTSUITE/test-config:
   failed to open included configuration file /non/existent
diff --git a/test/runtest b/test/runtest
index fcc7a972e..b201d1cfa 100755
--- a/test/runtest
+++ b/test/runtest
@@ -348,7 +348,7 @@ $spid = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
 # that are specific to certain file types, though there are also some of those
 # inline too.
 
-while(<IN>)
+LINE: while(<IN>)
   {
 RESET_AFTER_EXTRA_LINE_READ:
   # Custom munges
@@ -563,6 +563,25 @@ RESET_AFTER_EXTRA_LINE_READ:
   # signature algorithm names
   s/RSA-SHA1/RSA-SHA/;
 
+  # -d produces a list of environement variables as they are checked if they exist in the
+  # in the environment. Unfortunately this list isn't always in the same order. For now we
+  # just remove this list
+  #
+  if (/^\w+ in keep_environment/)
+    {
+    my @lines = $_;
+    while (<IN>)
+      {
+      if (/^\w+ in keep_environment/)
+        {
+        push @lines, $_;
+        next;
+        }
+      print MUNGED sort grep { !/^(SHLVL|_) / } @lines;
+      redo LINE;
+      }
+    }
+
 
   # ======== Caller's login, uid, gid, home, gecos ========
 
@@ -1659,6 +1678,8 @@ my($commandnameref) = $_[3];
 my($aux_info) = $_[4];
 my($yield) = 1;
 
+our %ENV = map { $_ => $ENV{$_} } grep { /^(?:USER|SHELL|PATH|TERM|EXIM_TEST_.*)$/ } keys %ENV;
+
 if (/^(\d+)\s*$/)                # Handle unusual return code
   {
   my($r) = $_[2];
@@ -2062,12 +2083,12 @@ if (/^client/ || /^(sudo\s+)?perl\b/)
 # not drop privilege when -C and -D options are present. To run the exim
 # command as root, we use sudo.
 
-elsif (/^([A-Z_]+=\S+\s+)?(\d+)?\s*(sudo\s+)?exim(_\S+)?\s+(.*)$/)
+elsif (/^((?i:[A-Z\d_]+=\S+\s+)+)?(\d+)?\s*(sudo(?:\s+-u\s+(\w+))?\s+)?exim(_\S+)?\s+(.*)$/)
   {
-  $args = $5;
+  $args = $6;
   my($envset) = (defined $1)? $1      : "";
-  my($sudo)   = (defined $3)? "sudo " : "";
-  my($special)= (defined $4)? $4      : "";
+  my($sudo)   = (defined $3)? "sudo " . (defined $4 ? "-u $4 ":"")  : "";
+  my($special)= (defined $5)? $5      : "";
   $wait_time  = (defined $2)? $2      : 0;
 
   # Return 2 rather than 1 afterwards
diff --git a/test/scripts/0000-Basic/0615 b/test/scripts/0000-Basic/0615
new file mode 100644
index 000000000..9057363f3
--- /dev/null
+++ b/test/scripts/0000-Basic/0615
@@ -0,0 +1,13 @@
+# Environment
+# settings
+FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -bP keep_environment add_environment
+****
+# result via -bP enviroment
+FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -bP environment
+****
+# result via -n -bP enviroment
+FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -n -bP environment
+****
+# result via perl_at_start
+FOO=foo FOO1=foo1 FOO2=foo2 BAR=bar BAR1=bar1 BAR2=bar2 exim -ps -be ''
+***
diff --git a/test/scripts/0000-Basic/0616 b/test/scripts/0000-Basic/0616
new file mode 120000
index 000000000..122707d0a
--- /dev/null
+++ b/test/scripts/0000-Basic/0616
@@ -0,0 +1 @@
+0615
\ No newline at end of file
diff --git a/test/stderr/0002 b/test/stderr/0002
index b4f06a104..c19ce9ce3 100644
--- a/test/stderr/0002
+++ b/test/stderr/0002
@@ -130,6 +130,11 @@ expanding: -oMt  sender_ident = $sender_ident
 Exim version x.yz ....
 changed uid/gid: forcing real = effective
   uid=uuuu gid=CALLER_GID pid=pppp
+PATH in keep_environment? no (end of list)
+PWD in keep_environment? no (end of list)
+SHELL in keep_environment? no (end of list)
+TERM in keep_environment? no (end of list)
+USER in keep_environment? yes (matched "USER")
 configuration file is TESTSUITE/test-config
 admin user
 changed uid/gid: privilege not needed
@@ -189,6 +194,11 @@ search_tidyup called
 Exim version x.yz ....
 changed uid/gid: forcing real = effective
   uid=uuuu gid=CALLER_GID pid=pppp
+PATH in keep_environment? no (end of list)
+PWD in keep_environment? no (end of list)
+SHELL in keep_environment? no (end of list)
+TERM in keep_environment? no (end of list)
+USER in keep_environment? yes (matched "USER")
 configuration file is TESTSUITE/test-config
 admin user
 changed uid/gid: privilege not needed
@@ -373,6 +383,11 @@ LOG: 10HmbD-0005vi-00 H=[V4NET.0.0.0] F=<> rejected after DATA: reply_address=<>
 Exim version x.yz ....
 changed uid/gid: -C, -D, -be or -bf forces real uid
   uid=CALLER_UID gid=CALLER_GID pid=pppp
+PATH in keep_environment? no (end of list)
+PWD in keep_environment? no (end of list)
+SHELL in keep_environment? no (end of list)
+TERM in keep_environment? no (end of list)
+USER in keep_environment? yes (matched "USER")
 configuration file is TESTSUITE/test-config
 admin user
 originator: uid=CALLER_UID gid=CALLER_GID login=CALLER name=CALLER_NAME
diff --git a/test/stderr/0013 b/test/stderr/0013
index c9eb6412c..74c607a1b 100644
--- a/test/stderr/0013
+++ b/test/stderr/0013
@@ -1,2 +1,2 @@
-1999-03-02 09:44:33 Exim configuration error in line 14 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 16 of TESTSUITE/test-config:
   extra characters follow string value for relay_hosts
diff --git a/test/stderr/0148 b/test/stderr/0148
index d9ba230b1..f7153995d 100644
--- a/test/stderr/0148
+++ b/test/stderr/0148
@@ -1,3 +1,3 @@
 LOG: PANIC DIE
-  Exim configuration error in line 16 of TESTSUITE/test-config:
+  Exim configuration error in line 18 of TESTSUITE/test-config:
   missing quote at end of string value for hold_domains
diff --git a/test/stderr/0236 b/test/stderr/0236
index f8a4205d4..75ed334bf 100644
--- a/test/stderr/0236
+++ b/test/stderr/0236
@@ -1,3 +1,3 @@
 LOG: PANIC DIE
-  Exim configuration error in line 14 of TESTSUITE/test-config:
+  Exim configuration error in line 16 of TESTSUITE/test-config:
   macro name too long (maximum is 63 characters)
diff --git a/test/stderr/0290 b/test/stderr/0290
index 4aed074e0..729780b71 100644
--- a/test/stderr/0290
+++ b/test/stderr/0290
@@ -1,3 +1,3 @@
 LOG: PANIC DIE
-  Exim configuration error in line 26 of TESTSUITE/test-config:
+  Exim configuration error in line 28 of TESTSUITE/test-config:
   .include specifies a non-absolute path "non/absolute"
diff --git a/test/stderr/0348 b/test/stderr/0348
index f901fd4cf..d18082f4c 100644
--- a/test/stderr/0348
+++ b/test/stderr/0348
@@ -1,8 +1,8 @@
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
-1999-03-02 09:44:33 Exim configuration error in line 24 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 26 of TESTSUITE/test-config:
   bad parameters for retry rule
diff --git a/test/stderr/0415 b/test/stderr/0415
index b593b1bc8..95b5e7f5e 100644
--- a/test/stderr/0415
+++ b/test/stderr/0415
@@ -1,30 +1,30 @@
 LOG: PANIC DIE
-  Exim configuration error in line 19 of TESTSUITE/test-config:
+  Exim configuration error in line 21 of TESTSUITE/test-config:
   absolute value of integer "4000000M" is too large (overflow)
 LOG: PANIC DIE
-  Exim configuration error in line 19 of TESTSUITE/test-config:
+  Exim configuration error in line 21 of TESTSUITE/test-config:
   extra characters follow integer value for check_spool_space
 LOG: PANIC DIE
-  Exim configuration error in line 20 of TESTSUITE/test-config:
+  Exim configuration error in line 22 of TESTSUITE/test-config:
   integer "4000000000.123" is too large (overflow)
 LOG: PANIC DIE
-  Exim configuration error in line 20 of TESTSUITE/test-config:
+  Exim configuration error in line 22 of TESTSUITE/test-config:
   integer "4000000.123" is too large (overflow)
 LOG: PANIC DIE
-  Exim configuration error in line 22 of TESTSUITE/test-config:
+  Exim configuration error in line 24 of TESTSUITE/test-config:
   absolute value of integer "999999999999999999" is too large (overflow)
 LOG: PANIC DIE
-  Exim configuration error in line 22 of TESTSUITE/test-config:
+  Exim configuration error in line 24 of TESTSUITE/test-config:
   absolute value of integer "999999999K" is too large (overflow)
 LOG: PANIC DIE
-  Exim configuration error in line 22 of TESTSUITE/test-config:
+  Exim configuration error in line 24 of TESTSUITE/test-config:
   absolute value of integer "999999M" is too large (overflow)
 LOG: PANIC DIE
-  Exim configuration error in line 22 of TESTSUITE/test-config:
+  Exim configuration error in line 24 of TESTSUITE/test-config:
   extra characters follow integer value for finduser_retries
 LOG: PANIC DIE
-  Exim configuration error in line 22 of TESTSUITE/test-config:
+  Exim configuration error in line 24 of TESTSUITE/test-config:
   integer expected for finduser_retries
 LOG: PANIC DIE
-  Exim configuration error in line 22 of TESTSUITE/test-config:
+  Exim configuration error in line 24 of TESTSUITE/test-config:
   extra characters follow integer value for finduser_retries
diff --git a/test/stderr/0442 b/test/stderr/0442
index 2dd90dd48..f8afd85ea 100644
--- a/test/stderr/0442
+++ b/test/stderr/0442
@@ -1,2 +1,2 @@
-1999-03-02 09:44:33 Exim configuration error in line 42 of TESTSUITE/test-config:
+1999-03-02 09:44:33 Exim configuration error in line 44 of TESTSUITE/test-config:
   failed to open included configuration file /non/existent
diff --git a/test/stderr/0615 b/test/stderr/0615
new file mode 100644
index 000000000..85ee6f760
--- /dev/null
+++ b/test/stderr/0615
@@ -0,0 +1,15 @@
+LOG: MAIN
+  WARNING: purging the environment.
+ Suggested action: use keep_environment and add_environment.
+
+LOG: MAIN
+  WARNING: purging the environment.
+ Suggested action: use keep_environment and add_environment.
+
+LOG: MAIN
+  WARNING: purging the environment.
+ Suggested action: use keep_environment and add_environment.
+
+1999-03-02 09:44:33 WARNING: purging the environment.
+ Suggested action: use keep_environment and add_environment.
+
diff --git a/test/stdout/0615 b/test/stdout/0615
new file mode 100644
index 000000000..58d5d0e37
--- /dev/null
+++ b/test/stdout/0615
@@ -0,0 +1,4 @@
+keep_environment = 
+add_environment = 
+Environment visible in Perl:
+
diff --git a/test/stdout/0616 b/test/stdout/0616
new file mode 100644
index 000000000..8ba67bb34
--- /dev/null
+++ b/test/stdout/0616
@@ -0,0 +1,19 @@
+keep_environment = ^FOO\d : BAR
+add_environment = ADDED1=added1 : ADDED2=added2
+ADDED1=added1
+ADDED2=added2
+BAR=bar
+FOO1=foo1
+FOO2=foo2
+ADDED1
+ADDED2
+BAR
+FOO1
+FOO2
+Environment visible in Perl:
+ADDED1=added1
+ADDED2=added2
+BAR=bar
+FOO1=foo1
+FOO2=foo2
+