Fix debug output for NULL pointers on FreeBSD.
[users/heiko/exim.git] / src / src / dmarc.c
index d0a827bb8294ddb10aca3114eeeb94927a5dba98..704b0c88d582939967275c3cfb6c82c76144b444 100644 (file)
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 /* Experimental DMARC support.
-   Copyright (c) Todd Lyons <tlyons@exim.org> 2012, 2013
+   Copyright (c) Todd Lyons <tlyons@exim.org> 2012 - 2014
    License: GPL */
 
 /* Portions Copyright (c) 2012, 2013, The Trusted Domain Project;
 
 #include "exim.h"
 #ifdef EXPERIMENTAL_DMARC
-#if !defined EXPERIMENTAL_SPF
-#error SPF must also be enabled for DMARC
-#elif defined DISABLE_DKIM
-#error DKIM must also be enabled for DMARC
-#else
+# if !defined EXPERIMENTAL_SPF
+#  error SPF must also be enabled for DMARC
+# elif defined DISABLE_DKIM
+#  error DKIM must also be enabled for DMARC
+# else
 
-#include "functions.h"
-#include "dmarc.h"
-#include "pdkim/pdkim.h"
+#  include "functions.h"
+#  include "dmarc.h"
+#  include "pdkim/pdkim.h"
 
 OPENDMARC_LIB_T     dmarc_ctx;
 DMARC_POLICY_T     *dmarc_pctx = NULL;
@@ -31,13 +31,26 @@ uschar *dmarc_pass_fail = US"skipped";
 extern pdkim_signature  *dkim_signatures;
 header_line *from_header   = NULL;
 extern SPF_response_t   *spf_response;
-int    dmarc_spf_result     = 0;
+int dmarc_spf_ares_result  = 0;
 uschar *spf_sender_domain  = NULL;
 uschar *spf_human_readable = NULL;
 u_char *header_from_sender = NULL;
 int history_file_status    = DMARC_HIST_OK;
 uschar *dkim_history_buffer= NULL;
 
+typedef struct dmarc_exim_p {
+  uschar *name;
+  int    value;
+} dmarc_exim_p;
+
+static dmarc_exim_p dmarc_policy_description[] = {
+  /* name              value */
+  { US"",           DMARC_RECORD_P_UNSPECIFIED },
+  { US"none",       DMARC_RECORD_P_NONE },
+  { US"quarantine", DMARC_RECORD_P_QUARANTINE },
+  { US"reject",     DMARC_RECORD_P_REJECT },
+  { NULL,           0 }
+};
 /* Accept an error_block struct, initialize if empty, parse to the
  * end, and append the two strings passed to it.  Used for adding
  * variable amounts of value:pair data to the forensic emails. */
@@ -45,21 +58,21 @@ uschar *dkim_history_buffer= NULL;
 static error_block *
 add_to_eblock(error_block *eblock, uschar *t1, uschar *t2)
 {
-  error_block *eb = malloc(sizeof(error_block));
-  if (eblock == NULL)
-    eblock = eb;
-  else
+error_block *eb = store_malloc(sizeof(error_block));
+if (eblock == NULL)
+  eblock = eb;
+else
   {
-    /* Find the end of the eblock struct and point it at eb */
-    error_block *tmp = eblock;
-    while(tmp->next != NULL)
-      tmp = tmp->next;
-    tmp->next = eb;
+  /* Find the end of the eblock struct and point it at eb */
+  error_block *tmp = eblock;
+  while(tmp->next != NULL)
+    tmp = tmp->next;
+  tmp->next = eb;
   }
-  eb->text1 = t1;
-  eb->text2 = t2;
-  eb->next  = NULL;
-  return eblock;
+eb->text1 = t1;
+eb->text2 = t2;
+eb->next  = NULL;
+return eblock;
 }
 
 /* dmarc_init sets up a context that can be re-used for several
@@ -68,60 +81,61 @@ add_to_eblock(error_block *eblock, uschar *t1, uschar *t2)
 
 int dmarc_init()
 {
-  int *netmask   = NULL;   /* Ignored */
-  int is_ipv6    = 0;
-  char *tld_file = (dmarc_tld_file == NULL) ?
-                   "/etc/exim/opendmarc.tlds" :
-                   (char *)dmarc_tld_file;
-
-  /* Set some sane defaults.  Also clears previous results when
-   * multiple messages in one connection. */
-  dmarc_pctx         = NULL;
-  dmarc_status       = US"none";
-  dmarc_abort        = FALSE;
-  dmarc_pass_fail    = US"skipped";
-  dmarc_used_domain  = US"";
-  header_from_sender = NULL;
-  spf_sender_domain  = NULL;
-  spf_human_readable = NULL;
-
-  /* ACLs have "control=dmarc_disable_verify" */
-  if (dmarc_disable_verify == TRUE)
-    return OK;
-
-  (void) memset(&dmarc_ctx, '\0', sizeof dmarc_ctx);
-  dmarc_ctx.nscount = 0;
-  libdm_status = opendmarc_policy_library_init(&dmarc_ctx);
-  if (libdm_status != DMARC_PARSE_OKAY)
+int *netmask   = NULL;   /* Ignored */
+int is_ipv6    = 0;
+char *tld_file = (dmarc_tld_file == NULL) ?
+                DMARC_TLD_FILE : CS dmarc_tld_file;
+
+/* Set some sane defaults.  Also clears previous results when
+ * multiple messages in one connection. */
+dmarc_pctx         = NULL;
+dmarc_status       = US"none";
+dmarc_abort        = FALSE;
+dmarc_pass_fail    = US"skipped";
+dmarc_used_domain  = US"";
+dmarc_ar_header    = NULL;
+dmarc_has_been_checked = FALSE;
+header_from_sender = NULL;
+spf_sender_domain  = NULL;
+spf_human_readable = NULL;
+
+/* ACLs have "control=dmarc_disable_verify" */
+if (dmarc_disable_verify == TRUE)
+  return OK;
+
+(void) memset(&dmarc_ctx, '\0', sizeof dmarc_ctx);
+dmarc_ctx.nscount = 0;
+libdm_status = opendmarc_policy_library_init(&dmarc_ctx);
+if (libdm_status != DMARC_PARSE_OKAY)
   {
-    log_write(0, LOG_MAIN|LOG_PANIC, "DMARC failure to init library: %s",
-                         opendmarc_policy_status_to_str(libdm_status));
-    dmarc_abort = TRUE;
+  log_write(0, LOG_MAIN|LOG_PANIC, "DMARC failure to init library: %s",
+                      opendmarc_policy_status_to_str(libdm_status));
+  dmarc_abort = TRUE;
   }
-  if (opendmarc_tld_read_file(tld_file, NULL, NULL, NULL))
+if (dmarc_tld_file == NULL)
+  dmarc_abort = TRUE;
+else if (opendmarc_tld_read_file(tld_file, NULL, NULL, NULL))
   {
-    log_write(0, LOG_MAIN|LOG_PANIC, "DMARC failure to load tld list %s: %d",
-                         tld_file, errno);
-    dmarc_abort = TRUE;
+  log_write(0, LOG_MAIN|LOG_PANIC, "DMARC failure to load tld list %s: %d",
+                      tld_file, errno);
+  dmarc_abort = TRUE;
   }
-  if (sender_host_address == NULL)
-    dmarc_abort = TRUE;
-  /* This catches locally originated email and startup errors above. */
-  if ( dmarc_abort == FALSE )
+if (sender_host_address == NULL)
+  dmarc_abort = TRUE;
+/* This catches locally originated email and startup errors above. */
+if (!dmarc_abort)
   {
-    is_ipv6 = string_is_ip_address(sender_host_address, netmask);
-    is_ipv6 = (is_ipv6 == 6) ? TRUE :
-              (is_ipv6 == 4) ? FALSE : FALSE;
-    dmarc_pctx = opendmarc_policy_connect_init(sender_host_address, is_ipv6);
-    if (dmarc_pctx == NULL )
+  is_ipv6 = string_is_ip_address(sender_host_address, netmask) == 6;
+  dmarc_pctx = opendmarc_policy_connect_init(sender_host_address, is_ipv6);
+  if (dmarc_pctx == NULL)
     {
-      log_write(0, LOG_MAIN|LOG_PANIC, "DMARC failure creating policy context: ip=%s",
-                                       sender_host_address);
-      dmarc_abort = TRUE;
+    log_write(0, LOG_MAIN|LOG_PANIC,
+      "DMARC failure creating policy context: ip=%s", sender_host_address);
+    dmarc_abort = TRUE;
     }
   }
 
-  return OK;
+return OK;
 }
 
 
@@ -136,472 +150,496 @@ int dmarc_store_data(header_line *hdr) {
 }
 
 
+static void
+dmarc_send_forensic_report(u_char **ruf)
+{
+int   c;
+uschar *recipient, *save_sender;
+BOOL  send_status = FALSE;
+error_block *eblock = NULL;
+FILE *message_file = NULL;
+
+/* Earlier ACL does not have *required* control=dmarc_enable_forensic */
+if (!dmarc_enable_forensic)
+  return;
+
+if (  dmarc_policy == DMARC_POLICY_REJECT     && action == DMARC_RESULT_REJECT
+   || dmarc_policy == DMARC_POLICY_QUARANTINE && action == DMARC_RESULT_QUARANTINE
+   || dmarc_policy == DMARC_POLICY_NONE       && action == DMARC_RESULT_REJECT
+   || dmarc_policy == DMARC_POLICY_NONE       && action == DMARC_RESULT_QUARANTINE
+   )
+  if (ruf)
+    {
+    eblock = add_to_eblock(eblock, US"Sender Domain", dmarc_used_domain);
+    eblock = add_to_eblock(eblock, US"Sender IP Address", sender_host_address);
+    eblock = add_to_eblock(eblock, US"Received Date", tod_stamp(tod_full));
+    eblock = add_to_eblock(eblock, US"SPF Alignment",
+                          (sa==DMARC_POLICY_SPF_ALIGNMENT_PASS) ?US"yes":US"no");
+    eblock = add_to_eblock(eblock, US"DKIM Alignment",
+                          (da==DMARC_POLICY_DKIM_ALIGNMENT_PASS)?US"yes":US"no");
+    eblock = add_to_eblock(eblock, US"DMARC Results", dmarc_status_text);
+    /* Set a sane default envelope sender */
+    dsn_from = dmarc_forensic_sender ? dmarc_forensic_sender :
+              dsn_from ? dsn_from :
+              string_sprintf("do-not-reply@%s",primary_hostname);
+    for (c = 0; ruf[c]; c++)
+      {
+      recipient = string_copylc(ruf[c]);
+      if (Ustrncmp(recipient, "mailto:",7))
+       continue;
+      /* Move to first character past the colon */
+      recipient += 7;
+      DEBUG(D_receive)
+       debug_printf("DMARC forensic report to %s%s\n", recipient,
+            (host_checking || running_in_test_harness) ? " (not really)" : "");
+      if (host_checking || running_in_test_harness)
+       continue;
+
+      save_sender = sender_address;
+      sender_address = recipient;
+      send_status = moan_to_sender(ERRMESS_DMARC_FORENSIC, eblock,
+                                  header_list, message_file, FALSE);
+      sender_address = save_sender;
+      if (!send_status)
+       log_write(0, LOG_MAIN|LOG_PANIC,
+         "failure to send DMARC forensic report to %s", recipient);
+      }
+    }
+}
+
 /* dmarc_process adds the envelope sender address to the existing
    context (if any), retrieves the result, sets up expansion
    strings and evaluates the condition outcome. */
 
-int dmarc_process() {
-    int sr, origin; /* used in SPF section */
-    pdkim_signature *sig  = NULL;
-    BOOL has_dmarc_record = TRUE;
-    u_char **ruf; /* forensic report addressees, if called for */
-
-  /* ACLs have "control=dmarc_disable_verify" */
-  if (dmarc_disable_verify == TRUE)
+int
+dmarc_process()
+{
+int sr, origin;             /* used in SPF section */
+int dmarc_spf_result  = 0;  /* stores spf into dmarc conn ctx */
+int tmp_ans, c;
+pdkim_signature *sig  = NULL;
+BOOL has_dmarc_record = TRUE;
+u_char **ruf; /* forensic report addressees, if called for */
+
+/* ACLs have "control=dmarc_disable_verify" */
+if (dmarc_disable_verify)
   {
-    dmarc_ar_header = dmarc_auth_results_header(from_header, NULL);
-    return OK;
+  dmarc_ar_header = dmarc_auth_results_header(from_header, NULL);
+  return OK;
   }
 
-  /* Store the header From: sender domain for this part of DMARC.
  * If there is no from_header struct, then it's likely this message
  * is locally generated and relying on fixups to add it.  Just skip
  * the entire DMARC system if we can't find a From: header....or if
  * there was a previous error.
  */
-  if (from_header == NULL || dmarc_abort == TRUE)
-    dmarc_abort = TRUE;
-  else
+/* Store the header From: sender domain for this part of DMARC.
+ * If there is no from_header struct, then it's likely this message
+ * is locally generated and relying on fixups to add it.  Just skip
+ * the entire DMARC system if we can't find a From: header....or if
+ * there was a previous error.
+ */
+if (!from_header || dmarc_abort)
+  dmarc_abort = TRUE;
+else
   {
-    /* I strongly encourage anybody who can make this better to contact me directly!
-     * <cannonball> Is this an insane way to extract the email address from the From: header?
-     * <jgh_hm> it's sure a horrid layer-crossing....
-     * <cannonball> I'm not denying that :-/
-     * <jgh_hm> there may well be no better though
-     */
-    header_from_sender = expand_string(
-                           string_sprintf("${domain:${extract{1}{:}{${addresses:%s}}}}",
-                             from_header->text) );
+    uschar * errormsg;
+    int dummy, domain;
+    uschar * p;
+    uschar saveend;
+
+    parse_allow_group = TRUE;
+    p = parse_find_address_end(from_header->text, FALSE);
+    saveend = *p; *p = '\0';
+    if ((header_from_sender = parse_extract_address(from_header->text, &errormsg,
+                                &dummy, &dummy, &domain, FALSE)))
+      header_from_sender += domain;
+    *p = saveend;
+
     /* The opendmarc library extracts the domain from the email address, but
      * only try to store it if it's not empty.  Otherwise, skip out of DMARC. */
-    if (strcmp( CCS header_from_sender, "") == 0)
+    if (!header_from_sender || (strcmp( CCS header_from_sender, "") == 0))
       dmarc_abort = TRUE;
-    libdm_status = (dmarc_abort == TRUE) ?
-                  DMARC_PARSE_OKAY :
-                  opendmarc_policy_store_from_domain(dmarc_pctx, header_from_sender);
+    libdm_status = dmarc_abort ?
+      DMARC_PARSE_OKAY :
+      opendmarc_policy_store_from_domain(dmarc_pctx, header_from_sender);
     if (libdm_status != DMARC_PARSE_OKAY)
     {
-      log_write(0, LOG_MAIN|LOG_PANIC, "failure to store header From: in DMARC: %s, header was '%s'",
-                           opendmarc_policy_status_to_str(libdm_status), from_header->text);
-      dmarc_abort = TRUE;
+    log_write(0, LOG_MAIN|LOG_PANIC,
+             "failure to store header From: in DMARC: %s, header was '%s'",
+             opendmarc_policy_status_to_str(libdm_status), from_header->text);
+    dmarc_abort = TRUE;
     }
   }
 
-  /* Skip DMARC if connection is SMTP Auth. Temporarily, admin should
  * instead do this in the ACLs.  */
-  if (dmarc_abort == FALSE && sender_host_authenticated == NULL)
+/* Skip DMARC if connection is SMTP Auth. Temporarily, admin should
+ * instead do this in the ACLs.  */
+if (!dmarc_abort && !sender_host_authenticated)
   {
-    /* Use the envelope sender domain for this part of DMARC */
-    spf_sender_domain = expand_string(US"$sender_address_domain");
-    if ( spf_response == NULL )
+  /* Use the envelope sender domain for this part of DMARC */
+  spf_sender_domain = expand_string(US"$sender_address_domain");
+  if (!spf_response)
     {
-      /* No spf data means null envelope sender so generate a domain name
-       * from the sender_host_name || sender_helo_name  */
-      if (spf_sender_domain == NULL)
+    /* No spf data means null envelope sender so generate a domain name
+     * from the sender_helo_name  */
+    if (!spf_sender_domain)
       {
-        spf_sender_domain = (sender_host_name == NULL) ? sender_helo_name : sender_host_name;
-        uschar *subdomain = spf_sender_domain;
-        int count = 0;
-        while (subdomain && *subdomain != '.')
-        {
-          subdomain++;
-          count++;
-        }
-        /* If parsed characters in temp var "subdomain" and is pointing to
-         * a period now, get rid of the period and use that.  Otherwise
-         * will use whatever was first set in spf_sender_domain.  Goal is to
-         * generate a sane answer, not necessarily the right/best answer b/c
-         * at this point with a null sender, it's a bounce message, making
-         * the spf domain be subjective.  */
-        if (count > 0 && *subdomain == '.')
-        {
-          subdomain++;
-          spf_sender_domain = subdomain;
-        }
-        log_write(0, LOG_MAIN, "DMARC using synthesized SPF sender domain = %s\n",
-                               spf_sender_domain);
-        DEBUG(D_receive)
-          debug_printf("DMARC using synthesized SPF sender domain = %s\n", spf_sender_domain);
+      spf_sender_domain = sender_helo_name;
+      log_write(0, LOG_MAIN, "DMARC using synthesized SPF sender domain = %s\n",
+                            spf_sender_domain);
+      DEBUG(D_receive)
+       debug_printf("DMARC using synthesized SPF sender domain = %s\n",
+         spf_sender_domain);
       }
-      dmarc_spf_result = DMARC_POLICY_SPF_OUTCOME_NONE;
-      origin = DMARC_POLICY_SPF_ORIGIN_HELO;
-      spf_human_readable = US"";
+    dmarc_spf_result = DMARC_POLICY_SPF_OUTCOME_NONE;
+    dmarc_spf_ares_result = ARES_RESULT_UNKNOWN;
+    origin = DMARC_POLICY_SPF_ORIGIN_HELO;
+    spf_human_readable = US"";
     }
-    else
+  else
     {
-      sr = spf_response->result;
-      dmarc_spf_result = (sr == SPF_RESULT_NEUTRAL)  ? DMARC_POLICY_SPF_OUTCOME_NONE :
-                         (sr == SPF_RESULT_PASS)     ? DMARC_POLICY_SPF_OUTCOME_PASS :
-                         (sr == SPF_RESULT_FAIL)     ? DMARC_POLICY_SPF_OUTCOME_FAIL :
-                         (sr == SPF_RESULT_SOFTFAIL) ? DMARC_POLICY_SPF_OUTCOME_TMPFAIL :
-                         DMARC_POLICY_SPF_OUTCOME_NONE;
-      origin = DMARC_POLICY_SPF_ORIGIN_MAILFROM;
-      spf_human_readable = (uschar *)spf_response->header_comment;
-      DEBUG(D_receive)
-        debug_printf("DMARC using SPF sender domain = %s\n", spf_sender_domain);
+    sr = spf_response->result;
+    dmarc_spf_result = sr == SPF_RESULT_NEUTRAL  ? DMARC_POLICY_SPF_OUTCOME_NONE :
+                      sr == SPF_RESULT_PASS     ? DMARC_POLICY_SPF_OUTCOME_PASS :
+                      sr == SPF_RESULT_FAIL     ? DMARC_POLICY_SPF_OUTCOME_FAIL :
+                      sr == SPF_RESULT_SOFTFAIL ? DMARC_POLICY_SPF_OUTCOME_TMPFAIL :
+                      DMARC_POLICY_SPF_OUTCOME_NONE;
+    dmarc_spf_ares_result = sr == SPF_RESULT_NEUTRAL   ? ARES_RESULT_NEUTRAL :
+                           sr == SPF_RESULT_PASS      ? ARES_RESULT_PASS :
+                           sr == SPF_RESULT_FAIL      ? ARES_RESULT_FAIL :
+                           sr == SPF_RESULT_SOFTFAIL  ? ARES_RESULT_SOFTFAIL :
+                           sr == SPF_RESULT_NONE      ? ARES_RESULT_NONE :
+                           sr == SPF_RESULT_TEMPERROR ? ARES_RESULT_TEMPERROR :
+                           sr == SPF_RESULT_PERMERROR ? ARES_RESULT_PERMERROR :
+                           ARES_RESULT_UNKNOWN;
+    origin = DMARC_POLICY_SPF_ORIGIN_MAILFROM;
+    spf_human_readable = US spf_response->header_comment;
+    DEBUG(D_receive)
+      debug_printf("DMARC using SPF sender domain = %s\n", spf_sender_domain);
     }
-    if (strcmp( CCS spf_sender_domain, "") == 0)
-      dmarc_abort = TRUE;
-    if (dmarc_abort == FALSE)
+  if (strcmp( CCS spf_sender_domain, "") == 0)
+    dmarc_abort = TRUE;
+  if (!dmarc_abort)
     {
-      libdm_status = opendmarc_policy_store_spf(dmarc_pctx, spf_sender_domain,
-                                                dmarc_spf_result, origin, spf_human_readable);
-      if (libdm_status != DMARC_PARSE_OKAY)
-        log_write(0, LOG_MAIN|LOG_PANIC, "failure to store spf for DMARC: %s",
-                             opendmarc_policy_status_to_str(libdm_status));
+    libdm_status = opendmarc_policy_store_spf(dmarc_pctx, spf_sender_domain,
+                               dmarc_spf_result, origin, spf_human_readable);
+    if (libdm_status != DMARC_PARSE_OKAY)
+      log_write(0, LOG_MAIN|LOG_PANIC, "failure to store spf for DMARC: %s",
+                          opendmarc_policy_status_to_str(libdm_status));
     }
 
-    /* Now we cycle through the dkim signature results and put into
-     * the opendmarc context, further building the DMARC reply.  */
-    sig = dkim_signatures;
-    dkim_history_buffer = US"";
-    while (sig != NULL)
+  /* Now we cycle through the dkim signature results and put into
+   * the opendmarc context, further building the DMARC reply.  */
+  sig = dkim_signatures;
+  dkim_history_buffer = US"";
+  while (sig)
     {
-      int dkim_result, vs;
-      vs = sig->verify_status;
-      dkim_result = ( vs == PDKIM_VERIFY_PASS ) ? DMARC_POLICY_DKIM_OUTCOME_PASS :
-                   ( vs == PDKIM_VERIFY_FAIL ) ? DMARC_POLICY_DKIM_OUTCOME_FAIL :
-                   ( vs == PDKIM_VERIFY_INVALID ) ? DMARC_POLICY_DKIM_OUTCOME_TMPFAIL :
-                    DMARC_POLICY_DKIM_OUTCOME_NONE;
-      libdm_status = opendmarc_policy_store_dkim(dmarc_pctx, (uschar *)sig->domain,
-                                                dkim_result, US"");
-      DEBUG(D_receive)
-        debug_printf("DMARC adding DKIM sender domain = %s\n", sig->domain);
-      if (libdm_status != DMARC_PARSE_OKAY)
-        log_write(0, LOG_MAIN|LOG_PANIC, "failure to store dkim (%s) for DMARC: %s",
-                            sig->domain, opendmarc_policy_status_to_str(libdm_status));
-
-      dkim_history_buffer = string_sprintf("%sdkim %s %d\n", dkim_history_buffer,
-                                                             sig->domain, dkim_result);
-      sig = sig->next;
-    }
-    libdm_status = opendmarc_policy_query_dmarc(dmarc_pctx, US"");
-    switch (libdm_status)
-    {
-      case DMARC_DNS_ERROR_NXDOMAIN:
-      case DMARC_DNS_ERROR_NO_RECORD:
-        DEBUG(D_receive)
-          debug_printf("DMARC no record found for %s\n", header_from_sender);
-        has_dmarc_record = FALSE;
-        break;
-      case DMARC_PARSE_OKAY:
-        DEBUG(D_receive)
-          debug_printf("DMARC record found for %s\n", header_from_sender);
-        break;
-      case DMARC_PARSE_ERROR_BAD_VALUE:
-        DEBUG(D_receive)
-          debug_printf("DMARC record parse error for %s\n", header_from_sender);
-        has_dmarc_record = FALSE;
-        break;
-      default:
-        /* everything else, skip dmarc */
-        DEBUG(D_receive)
-          debug_printf("DMARC skipping (%d), unsure what to do with %s",
-                        libdm_status, from_header->text);
-        has_dmarc_record = FALSE;
-        break;
-    }
-    /* Can't use exim's string manipulation functions so allocate memory
-     * for libopendmarc using its max hostname length definition. */
-    uschar *dmarc_domain = (uschar *)calloc(DMARC_MAXHOSTNAMELEN, sizeof(uschar));
-    libdm_status = opendmarc_policy_fetch_utilized_domain(dmarc_pctx, dmarc_domain,
-                                                         DMARC_MAXHOSTNAMELEN-1);
-    dmarc_used_domain = string_copy(dmarc_domain);
-    free(dmarc_domain);
+    int dkim_result, dkim_ares_result, vs, ves;
+    vs  = sig->verify_status;
+    ves = sig->verify_ext_status;
+    dkim_result = vs == PDKIM_VERIFY_PASS ? DMARC_POLICY_DKIM_OUTCOME_PASS :
+                 vs == PDKIM_VERIFY_FAIL ? DMARC_POLICY_DKIM_OUTCOME_FAIL :
+                 vs == PDKIM_VERIFY_INVALID ? DMARC_POLICY_DKIM_OUTCOME_TMPFAIL :
+                 DMARC_POLICY_DKIM_OUTCOME_NONE;
+    libdm_status = opendmarc_policy_store_dkim(dmarc_pctx, US sig->domain,
+                                              dkim_result, US"");
+    DEBUG(D_receive)
+      debug_printf("DMARC adding DKIM sender domain = %s\n", sig->domain);
     if (libdm_status != DMARC_PARSE_OKAY)
-    {
-      log_write(0, LOG_MAIN|LOG_PANIC, "failure to read domainname used for DMARC lookup: %s",
-                                       opendmarc_policy_status_to_str(libdm_status));
+      log_write(0, LOG_MAIN|LOG_PANIC,
+               "failure to store dkim (%s) for DMARC: %s",
+               sig->domain, opendmarc_policy_status_to_str(libdm_status));
+
+    dkim_ares_result =
+      vs == PDKIM_VERIFY_PASS    ? ARES_RESULT_PASS :
+      vs == PDKIM_VERIFY_FAIL    ? ARES_RESULT_FAIL :
+      vs == PDKIM_VERIFY_NONE    ? ARES_RESULT_NONE :
+      vs == PDKIM_VERIFY_INVALID ?
+       ves == PDKIM_VERIFY_INVALID_PUBKEY_UNAVAILABLE ? ARES_RESULT_PERMERROR :
+       ves == PDKIM_VERIFY_INVALID_BUFFER_SIZE        ? ARES_RESULT_PERMERROR :
+       ves == PDKIM_VERIFY_INVALID_PUBKEY_DNSRECORD   ? ARES_RESULT_PERMERROR :
+       ves == PDKIM_VERIFY_INVALID_PUBKEY_IMPORT      ? ARES_RESULT_PERMERROR :
+       ARES_RESULT_UNKNOWN :
+      ARES_RESULT_UNKNOWN;
+    dkim_history_buffer = string_sprintf("%sdkim %s %d\n", dkim_history_buffer,
+                                        sig->domain, dkim_ares_result);
+    sig = sig->next;
     }
-    libdm_status = opendmarc_get_policy_to_enforce(dmarc_pctx);
-    dmarc_policy = libdm_status;
-    switch(libdm_status)
+  libdm_status = opendmarc_policy_query_dmarc(dmarc_pctx, US"");
+  switch (libdm_status)
     {
-      case DMARC_POLICY_ABSENT:     /* No DMARC record found */
-        dmarc_status = US"norecord";
-        dmarc_pass_fail = US"temperror";
-        dmarc_status_text = US"No DMARC record";
-        action = DMARC_RESULT_ACCEPT;
-        break;
-      case DMARC_FROM_DOMAIN_ABSENT:    /* No From: domain */
-        dmarc_status = US"nofrom";
-        dmarc_pass_fail = US"temperror";
-        dmarc_status_text = US"No From: domain found";
-        action = DMARC_RESULT_ACCEPT;
-        break;
-      case DMARC_POLICY_NONE:       /* Accept and report */
-        dmarc_status = US"none";
-        dmarc_pass_fail = US"none";
-        dmarc_status_text = US"None, Accept";
-        action = DMARC_RESULT_ACCEPT;
-        break;
-      case DMARC_POLICY_PASS:       /* Explicit accept */
-        dmarc_status = US"accept";
-        dmarc_pass_fail = US"pass";
-        dmarc_status_text = US"Accept";
-        action = DMARC_RESULT_ACCEPT;
-        break;
-      case DMARC_POLICY_REJECT:       /* Explicit reject */
-        dmarc_status = US"reject";
-        dmarc_pass_fail = US"fail";
-        dmarc_status_text = US"Reject";
-        action = DMARC_RESULT_REJECT;
-        break;
-      case DMARC_POLICY_QUARANTINE:       /* Explicit quarantine */
-        dmarc_status = US"quarantine";
-        dmarc_pass_fail = US"fail";
-        dmarc_status_text = US"Quarantine";
-        action = DMARC_RESULT_QUARANTINE;
-        break;
-      default:
-        dmarc_status = US"temperror";
-        dmarc_pass_fail = US"temperror";
-        dmarc_status_text = US"Internal Policy Error";
-        action = DMARC_RESULT_TEMPFAIL;
-        break;
+    case DMARC_DNS_ERROR_NXDOMAIN:
+    case DMARC_DNS_ERROR_NO_RECORD:
+      DEBUG(D_receive)
+       debug_printf("DMARC no record found for %s\n", header_from_sender);
+      has_dmarc_record = FALSE;
+      break;
+    case DMARC_PARSE_OKAY:
+      DEBUG(D_receive)
+       debug_printf("DMARC record found for %s\n", header_from_sender);
+      break;
+    case DMARC_PARSE_ERROR_BAD_VALUE:
+      DEBUG(D_receive)
+       debug_printf("DMARC record parse error for %s\n", header_from_sender);
+      has_dmarc_record = FALSE;
+      break;
+    default:
+      /* everything else, skip dmarc */
+      DEBUG(D_receive)
+       debug_printf("DMARC skipping (%d), unsure what to do with %s",
+                     libdm_status, from_header->text);
+      has_dmarc_record = FALSE;
+      break;
     }
 
-    libdm_status = opendmarc_policy_fetch_alignment(dmarc_pctx, &da, &sa);
-    if (libdm_status != DMARC_PARSE_OKAY)
+/* Store the policy string in an expandable variable. */
+
+  libdm_status = opendmarc_policy_fetch_p(dmarc_pctx, &tmp_ans);
+  for (c = 0; dmarc_policy_description[c].name; c++)
+    if (tmp_ans == dmarc_policy_description[c].value)
+      {
+      dmarc_domain_policy = string_sprintf("%s",dmarc_policy_description[c].name);
+      break;
+      }
+
+  /* Can't use exim's string manipulation functions so allocate memory
+   * for libopendmarc using its max hostname length definition. */
+
+  uschar *dmarc_domain = US calloc(DMARC_MAXHOSTNAMELEN, sizeof(uschar));
+  libdm_status = opendmarc_policy_fetch_utilized_domain(dmarc_pctx,
+    dmarc_domain, DMARC_MAXHOSTNAMELEN-1);
+  dmarc_used_domain = string_copy(dmarc_domain);
+  free(dmarc_domain);
+
+  if (libdm_status != DMARC_PARSE_OKAY)
+    log_write(0, LOG_MAIN|LOG_PANIC,
+      "failure to read domainname used for DMARC lookup: %s",
+      opendmarc_policy_status_to_str(libdm_status));
+
+  libdm_status = opendmarc_get_policy_to_enforce(dmarc_pctx);
+  dmarc_policy = libdm_status;
+  switch(libdm_status)
     {
-      log_write(0, LOG_MAIN|LOG_PANIC, "failure to read DMARC alignment: %s",
-                                       opendmarc_policy_status_to_str(libdm_status));
+    case DMARC_POLICY_ABSENT:     /* No DMARC record found */
+      dmarc_status = US"norecord";
+      dmarc_pass_fail = US"none";
+      dmarc_status_text = US"No DMARC record";
+      action = DMARC_RESULT_ACCEPT;
+      break;
+    case DMARC_FROM_DOMAIN_ABSENT:    /* No From: domain */
+      dmarc_status = US"nofrom";
+      dmarc_pass_fail = US"temperror";
+      dmarc_status_text = US"No From: domain found";
+      action = DMARC_RESULT_ACCEPT;
+      break;
+    case DMARC_POLICY_NONE:       /* Accept and report */
+      dmarc_status = US"none";
+      dmarc_pass_fail = US"none";
+      dmarc_status_text = US"None, Accept";
+      action = DMARC_RESULT_ACCEPT;
+      break;
+    case DMARC_POLICY_PASS:       /* Explicit accept */
+      dmarc_status = US"accept";
+      dmarc_pass_fail = US"pass";
+      dmarc_status_text = US"Accept";
+      action = DMARC_RESULT_ACCEPT;
+      break;
+    case DMARC_POLICY_REJECT:       /* Explicit reject */
+      dmarc_status = US"reject";
+      dmarc_pass_fail = US"fail";
+      dmarc_status_text = US"Reject";
+      action = DMARC_RESULT_REJECT;
+      break;
+    case DMARC_POLICY_QUARANTINE:       /* Explicit quarantine */
+      dmarc_status = US"quarantine";
+      dmarc_pass_fail = US"fail";
+      dmarc_status_text = US"Quarantine";
+      action = DMARC_RESULT_QUARANTINE;
+      break;
+    default:
+      dmarc_status = US"temperror";
+      dmarc_pass_fail = US"temperror";
+      dmarc_status_text = US"Internal Policy Error";
+      action = DMARC_RESULT_TEMPFAIL;
+      break;
     }
 
-    if (has_dmarc_record == TRUE)
+  libdm_status = opendmarc_policy_fetch_alignment(dmarc_pctx, &da, &sa);
+  if (libdm_status != DMARC_PARSE_OKAY)
+    log_write(0, LOG_MAIN|LOG_PANIC, "failure to read DMARC alignment: %s",
+                            opendmarc_policy_status_to_str(libdm_status));
+
+  if (has_dmarc_record == TRUE)
     {
-      log_write(0, LOG_MAIN, "DMARC results: spf_domain=%s dmarc_domain=%s "
-                             "spf_align=%s dkim_align=%s enforcement='%s'",
-                             spf_sender_domain, dmarc_used_domain,
-                             (sa==DMARC_POLICY_SPF_ALIGNMENT_PASS) ?"yes":"no",
-                             (da==DMARC_POLICY_DKIM_ALIGNMENT_PASS)?"yes":"no",
-                             dmarc_status_text);
-      history_file_status = dmarc_write_history_file();
-      /* Now get the forensic reporting addresses, if any */
-      ruf = opendmarc_policy_fetch_ruf(dmarc_pctx, NULL, 0, 1);
-      dmarc_send_forensic_report(ruf);
+    log_write(0, LOG_MAIN, "DMARC results: spf_domain=%s dmarc_domain=%s "
+                          "spf_align=%s dkim_align=%s enforcement='%s'",
+                          spf_sender_domain, dmarc_used_domain,
+                          (sa==DMARC_POLICY_SPF_ALIGNMENT_PASS) ?"yes":"no",
+                          (da==DMARC_POLICY_DKIM_ALIGNMENT_PASS)?"yes":"no",
+                          dmarc_status_text);
+    history_file_status = dmarc_write_history_file();
+    /* Now get the forensic reporting addresses, if any */
+    ruf = opendmarc_policy_fetch_ruf(dmarc_pctx, NULL, 0, 1);
+    dmarc_send_forensic_report(ruf);
     }
   }
 
-  /* set some global variables here */
-  dmarc_ar_header = dmarc_auth_results_header(from_header, NULL);
+/* set some global variables here */
+dmarc_ar_header = dmarc_auth_results_header(from_header, NULL);
 
-  /* shut down libopendmarc */
-  if ( dmarc_pctx != NULL )
-    (void) opendmarc_policy_connect_shutdown(dmarc_pctx);
-  if ( dmarc_disable_verify == FALSE )
-    (void) opendmarc_policy_library_shutdown(&dmarc_ctx);
+/* shut down libopendmarc */
+if ( dmarc_pctx != NULL )
+  (void) opendmarc_policy_connect_shutdown(dmarc_pctx);
+if ( dmarc_disable_verify == FALSE )
+  (void) opendmarc_policy_library_shutdown(&dmarc_ctx);
 
-  return OK;
+return OK;
 }
 
-int dmarc_write_history_file()
+int
+dmarc_write_history_file()
 {
-  static int history_file_fd;
-  ssize_t written_len;
-  int tmp_ans;
-  u_char **rua; /* aggregate report addressees */
-  uschar *history_buffer = NULL;
+int history_file_fd;
+ssize_t written_len;
+int tmp_ans;
+u_char **rua; /* aggregate report addressees */
+uschar *history_buffer = NULL;
 
-  if (dmarc_history_file == NULL)
-    return DMARC_HIST_DISABLED;
-  history_file_fd = log_create(dmarc_history_file);
+if (!dmarc_history_file)
+  return DMARC_HIST_DISABLED;
+history_file_fd = log_create(dmarc_history_file);
 
-  if (history_file_fd < 0)
-  {
-    log_write(0, LOG_MAIN|LOG_PANIC, "failure to create DMARC history file: %s",
-                            dmarc_history_file);
-    return DMARC_HIST_FILE_ERR;
-  }
+if (history_file_fd < 0)
+{
+  log_write(0, LOG_MAIN|LOG_PANIC, "failure to create DMARC history file: %s",
+                          dmarc_history_file);
+  return DMARC_HIST_FILE_ERR;
+}
 
-  /* Generate the contents of the history file */
-  history_buffer = string_sprintf("job %s\n", message_id);
-  history_buffer = string_sprintf("%sreporter %s\n", history_buffer, primary_hostname);
-  history_buffer = string_sprintf("%sreceived %ld\n", history_buffer, time(NULL));
-  history_buffer = string_sprintf("%sipaddr %s\n", history_buffer, sender_host_address);
-  history_buffer = string_sprintf("%sfrom %s\n", history_buffer, header_from_sender);
-  history_buffer = string_sprintf("%smfrom %s\n", history_buffer,
-                     expand_string(US"$sender_address_domain"));
-
-  if (spf_response != NULL)
-    history_buffer = string_sprintf("%sspf %d\n", history_buffer, dmarc_spf_result);
-    // history_buffer = string_sprintf("%sspf -1\n", history_buffer);
-
-  history_buffer = string_sprintf("%s%s", history_buffer, dkim_history_buffer);
-  history_buffer = string_sprintf("%spdomain %s\n", history_buffer, dmarc_used_domain);
-  history_buffer = string_sprintf("%spolicy %d\n", history_buffer, dmarc_policy);
-
-  rua = opendmarc_policy_fetch_rua(dmarc_pctx, NULL, 0, 1);
-  if (rua != NULL)
-  {
-    for (tmp_ans = 0; rua[tmp_ans] != NULL; tmp_ans++)
-    {
-      history_buffer = string_sprintf("%srua %s\n", history_buffer, rua[tmp_ans]);
-    }
-  }
-  else
-    history_buffer = string_sprintf("%srua -\n", history_buffer);
+/* Generate the contents of the history file */
+history_buffer = string_sprintf(
+  "job %s\nreporter %s\nreceived %ld\nipaddr %s\nfrom %s\nmfrom %s\n",
+  message_id, primary_hostname, time(NULL), sender_host_address,
+  header_from_sender, expand_string(US"$sender_address_domain"));
 
-  opendmarc_policy_fetch_pct(dmarc_pctx, &tmp_ans);
-  history_buffer = string_sprintf("%spct %d\n", history_buffer, tmp_ans);
+if (spf_response)
+  history_buffer = string_sprintf("%sspf %d\n", history_buffer, dmarc_spf_ares_result);
+  /* history_buffer = string_sprintf("%sspf -1\n", history_buffer); */
 
-  opendmarc_policy_fetch_adkim(dmarc_pctx, &tmp_ans);
-  history_buffer = string_sprintf("%sadkim %d\n", history_buffer, tmp_ans);
+history_buffer = string_sprintf(
+  "%s%spdomain %s\npolicy %d\n",
+  history_buffer, dkim_history_buffer, dmarc_used_domain, dmarc_policy);
 
-  opendmarc_policy_fetch_aspf(dmarc_pctx, &tmp_ans);
-  history_buffer = string_sprintf("%saspf %d\n", history_buffer, tmp_ans);
+if ((rua = opendmarc_policy_fetch_rua(dmarc_pctx, NULL, 0, 1)))
+  for (tmp_ans = 0; rua[tmp_ans]; tmp_ans++)
+    history_buffer = string_sprintf("%srua %s\n", history_buffer, rua[tmp_ans]);
+else
+  history_buffer = string_sprintf("%srua -\n", history_buffer);
 
-  opendmarc_policy_fetch_p(dmarc_pctx, &tmp_ans);
-  history_buffer = string_sprintf("%sp %d\n", history_buffer, tmp_ans);
+opendmarc_policy_fetch_pct(dmarc_pctx, &tmp_ans);
+history_buffer = string_sprintf("%spct %d\n", history_buffer, tmp_ans);
 
-  opendmarc_policy_fetch_sp(dmarc_pctx, &tmp_ans);
-  history_buffer = string_sprintf("%ssp %d\n", history_buffer, tmp_ans);
+opendmarc_policy_fetch_adkim(dmarc_pctx, &tmp_ans);
+history_buffer = string_sprintf("%sadkim %d\n", history_buffer, tmp_ans);
 
-  history_buffer = string_sprintf("%salign_dkim %d\n", history_buffer, da);
-  history_buffer = string_sprintf("%salign_spf %d\n", history_buffer, sa);
-  history_buffer = string_sprintf("%saction %d\n", history_buffer, action);
+opendmarc_policy_fetch_aspf(dmarc_pctx, &tmp_ans);
+history_buffer = string_sprintf("%saspf %d\n", history_buffer, tmp_ans);
 
-  /* Write the contents to the history file */
-  DEBUG(D_receive)
-    debug_printf("DMARC logging history data for opendmarc reporting%s\n",
-                 (host_checking || running_in_test_harness) ? " (not really)" : "");
-  if (host_checking || running_in_test_harness)
-  {
-    DEBUG(D_receive)
-      debug_printf("DMARC history data for debugging:\n%s", history_buffer);
-  }
-  else
+opendmarc_policy_fetch_p(dmarc_pctx, &tmp_ans);
+history_buffer = string_sprintf("%sp %d\n", history_buffer, tmp_ans);
+
+opendmarc_policy_fetch_sp(dmarc_pctx, &tmp_ans);
+history_buffer = string_sprintf("%ssp %d\n", history_buffer, tmp_ans);
+
+history_buffer = string_sprintf(
+  "%salign_dkim %d\nalign_spf %d\naction %d\n",
+  history_buffer, da, sa, action);
+
+/* Write the contents to the history file */
+DEBUG(D_receive)
+  debug_printf("DMARC logging history data for opendmarc reporting%s\n",
+            (host_checking || running_in_test_harness) ? " (not really)" : "");
+if (host_checking || running_in_test_harness)
   {
-    written_len = write_to_fd_buf(history_file_fd,
-                                  history_buffer,
-                                  Ustrlen(history_buffer));
-    if (written_len == 0)
-    {
-      log_write(0, LOG_MAIN|LOG_PANIC, "failure to write to DMARC history file: %s",
-                            dmarc_history_file);
-      return DMARC_HIST_WRITE_ERR;
-    }
-    (void)close(history_file_fd);
+  DEBUG(D_receive)
+    debug_printf("DMARC history data for debugging:\n%s", history_buffer);
   }
-  return DMARC_HIST_OK;
-}
-
-void dmarc_send_forensic_report(u_char **ruf)
-{
-  int   c;
-  uschar *recipient, *save_sender;
-  BOOL  send_status = FALSE;
-  error_block *eblock = NULL;
-  FILE *message_file = NULL;
-
-  /* Earlier ACL does not have *required* control=dmarc_enable_forensic */
-  if (dmarc_enable_forensic == FALSE)
-    return;
-
-  if ((dmarc_policy == DMARC_POLICY_REJECT     && action == DMARC_RESULT_REJECT) ||
-      (dmarc_policy == DMARC_POLICY_QUARANTINE && action == DMARC_RESULT_QUARANTINE) )
+else
   {
-    if (ruf != NULL)
+  written_len = write_to_fd_buf(history_file_fd,
+                               history_buffer,
+                               Ustrlen(history_buffer));
+  if (written_len == 0)
     {
-      eblock = add_to_eblock(eblock, US"Sender Domain", dmarc_used_domain);
-      eblock = add_to_eblock(eblock, US"Sender IP Address", sender_host_address);
-      eblock = add_to_eblock(eblock, US"Received Date", tod_stamp(tod_full));
-      eblock = add_to_eblock(eblock, US"SPF Alignment",
-                             (sa==DMARC_POLICY_SPF_ALIGNMENT_PASS) ?US"yes":US"no");
-      eblock = add_to_eblock(eblock, US"DKIM Alignment",
-                             (da==DMARC_POLICY_DKIM_ALIGNMENT_PASS)?US"yes":US"no");
-      eblock = add_to_eblock(eblock, US"DMARC Results", dmarc_status_text);
-      /* Set a sane default envelope sender */
-      dsn_from = dmarc_forensic_sender ? dmarc_forensic_sender :
-                 dsn_from ? dsn_from :
-                 string_sprintf("do-not-reply@%s",primary_hostname);
-      for (c = 0; ruf[c] != NULL; c++)
-      {
-        recipient = string_copylc(ruf[c]);
-        if (Ustrncmp(recipient, "mailto:",7))
-       continue;
-        /* Move to first character past the colon */
-        recipient += 7;
-        DEBUG(D_receive)
-          debug_printf("DMARC forensic report to %s%s\n", recipient,
-                       (host_checking || running_in_test_harness) ? " (not really)" : "");
-        if (host_checking || running_in_test_harness)
-          continue;
-        save_sender = sender_address;
-        sender_address = recipient;
-        send_status = moan_to_sender(ERRMESS_DMARC_FORENSIC, eblock,
-                                     header_list, message_file, FALSE);
-        sender_address = save_sender;
-        if (send_status == FALSE)
-          log_write(0, LOG_MAIN|LOG_PANIC, "failure to send DMARC forensic report to %s",
-                    recipient);
-      }
+    log_write(0, LOG_MAIN|LOG_PANIC, "failure to write to DMARC history file: %s",
+                          dmarc_history_file);
+    return DMARC_HIST_WRITE_ERR;
     }
+  (void)close(history_file_fd);
   }
+return DMARC_HIST_OK;
 }
 
-uschar *dmarc_exim_expand_query(int what)
+uschar *
+dmarc_exim_expand_query(int what)
 {
-  if (dmarc_disable_verify || !dmarc_pctx)
-    return dmarc_exim_expand_defaults(what);
+if (dmarc_disable_verify || !dmarc_pctx)
+  return dmarc_exim_expand_defaults(what);
 
-  switch(what) {
-    case DMARC_VERIFY_STATUS:
-      return(dmarc_status);
-    default:
-      return US"";
+switch(what)
+  {
+  case DMARC_VERIFY_STATUS:
+    return(dmarc_status);
+  default:
+    return US"";
   }
 }
 
-uschar *dmarc_exim_expand_defaults(int what)
+uschar *
+dmarc_exim_expand_defaults(int what)
 {
-  switch(what) {
-    case DMARC_VERIFY_STATUS:
-      return (dmarc_disable_verify) ?
-              US"off" :
-              US"none";
-    default:
-      return US"";
+switch(what)
+  {
+  case DMARC_VERIFY_STATUS:
+    return dmarc_disable_verify ?  US"off" : US"none";
+  default:
+    return US"";
   }
 }
 
-uschar *dmarc_auth_results_header(header_line *from_header, uschar *hostname)
+uschar *
+dmarc_auth_results_header(header_line *from_header, uschar *hostname)
 {
-  uschar *hdr_tmp    = US"";
+uschar *hdr_tmp    = US"";
 
-  /* Allow a server hostname to be passed to this function, but is
  * currently unused */
-  if (hostname == NULL)
-    hostname = primary_hostname;
-  hdr_tmp = string_sprintf("%s %s;", DMARC_AR_HEADER, hostname);
+/* Allow a server hostname to be passed to this function, but is
+ * currently unused */
+if (!hostname)
+  hostname = primary_hostname;
+hdr_tmp = string_sprintf("%s %s;", DMARC_AR_HEADER, hostname);
 
 #if 0
-  /* I don't think this belongs here, but left it here commented out
  * because it was a lot of work to get working right. */
-  if (spf_response != NULL) {
-    uschar *dmarc_ar_spf = US"";
-    int sr               = 0;
-    sr = spf_response->result;
-    dmarc_ar_spf = (sr == SPF_RESULT_NEUTRAL)  ? US"neutral" :
-                   (sr == SPF_RESULT_PASS)     ? US"pass" :
-                   (sr == SPF_RESULT_FAIL)     ? US"fail" :
-                   (sr == SPF_RESULT_SOFTFAIL) ? US"softfail" :
-                   US"none";
-    hdr_tmp = string_sprintf("%s spf=%s (%s) smtp.mail=%s;",
-                             hdr_tmp, dmarc_ar_spf_result,
-                             spf_response->header_comment,
-                             expand_string(US"$sender_address") );
-  }
+/* I don't think this belongs here, but left it here commented out
+ * because it was a lot of work to get working right. */
+if (spf_response != NULL) {
+  uschar *dmarc_ar_spf = US"";
+  int sr               = 0;
+  sr = spf_response->result;
+  dmarc_ar_spf = (sr == SPF_RESULT_NEUTRAL)  ? US"neutral" :
+                (sr == SPF_RESULT_PASS)     ? US"pass" :
+                (sr == SPF_RESULT_FAIL)     ? US"fail" :
+                (sr == SPF_RESULT_SOFTFAIL) ? US"softfail" :
+                US"none";
+  hdr_tmp = string_sprintf("%s spf=%s (%s) smtp.mail=%s;",
+                          hdr_tmp, dmarc_ar_spf_result,
+                          spf_response->header_comment,
+                          expand_string(US"$sender_address") );
+}
 #endif
-  hdr_tmp = string_sprintf("%s dmarc=%s",
-                           hdr_tmp, dmarc_pass_fail);
-  if (header_from_sender)
-    hdr_tmp = string_sprintf("%s header.from=%s",
-                             hdr_tmp, header_from_sender);
-  return hdr_tmp;
+
+hdr_tmp = string_sprintf("%s dmarc=%s", hdr_tmp, dmarc_pass_fail);
+if (header_from_sender)
+  hdr_tmp = string_sprintf("%s header.from=%s",
+                          hdr_tmp, header_from_sender);
+return hdr_tmp;
 }
 
-#endif /* EXPERIMENTAL_SPF */
+# endif /* EXPERIMENTAL_SPF */
 #endif /* EXPERIMENTAL_DMARC */
-
-// vim:sw=2 expandtab
+/* vi: aw ai sw=2
+ */