SPF: remove the deprecated "err_temp" and "err_perm" result names

[exim.git] / src / src / globals.h

diff --git a/src/src/globals.h b/src/src/globals.h
index d90854cbe57af1aa780589fbcfbbda10462db138..da1230b7f3ca8541c2a5a82254705683150abe57 100644 (file)
--- a/src/src/globals.h
+++ b/src/src/globals.h
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 

-/* Copyright (c) University of Cambridge 1995 - 2014 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */

 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Almost all the global variables are defined together in this one header, so
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Almost all the global variables are defined together in this one header, so


@@ -28,6 +28,7 @@ typedef volatile sig_atomic_t SIGNAL_BOOL;
 extern uschar *opt_perl_startup;       /* Startup code for Perl interpreter */
 extern BOOL    opt_perl_at_start;      /* Start Perl interpreter at start */
 extern BOOL    opt_perl_started;       /* Set once interpreter started */
 extern uschar *opt_perl_startup;       /* Startup code for Perl interpreter */
 extern BOOL    opt_perl_at_start;      /* Start Perl interpreter at start */
 extern BOOL    opt_perl_started;       /* Set once interpreter started */

+extern BOOL    opt_perl_taintmode;     /* Enable taint mode in Perl */

 #endif
 
 #ifdef EXPAND_DLFUNC
 #endif
 
 #ifdef EXPAND_DLFUNC


@@ -62,7 +63,7 @@ extern uschar *oracle_servers;         /* List of servers and connect info */
 extern uschar *pgsql_servers;          /* List of servers and connect info */
 #endif
 
 extern uschar *pgsql_servers;          /* List of servers and connect info */
 #endif
 

-#ifdef EXPERIMENTAL_REDIS
+#ifdef LOOKUP_REDIS

 extern uschar *redis_servers;          /* List of servers and connect info */
 #endif
 
 extern uschar *redis_servers;          /* List of servers and connect info */
 #endif
 


@@ -82,7 +83,7 @@ typedef struct {
   int     active;             /* fd/socket when in a TLS session */
   int     bits;               /* bits used in TLS session */
   BOOL    certificate_verified; /* Client certificate verified */
   int     active;             /* fd/socket when in a TLS session */
   int     bits;               /* bits used in TLS session */
   BOOL    certificate_verified; /* Client certificate verified */

-#ifdef EXPERIMENTAL_DANE
+#ifdef SUPPORT_DANE

   BOOL    dane_verified;        /* ... via DANE */
   int     tlsa_usage;         /* TLSA record(s) usage */
 #endif
   BOOL    dane_verified;        /* ... via DANE */
   int     tlsa_usage;         /* TLSA record(s) usage */
 #endif


@@ -107,21 +108,17 @@ extern tls_support tls_out;
 #ifdef SUPPORT_TLS
 extern BOOL    gnutls_compat_mode;     /* Less security, more compatibility */
 extern BOOL    gnutls_allow_auto_pkcs11; /* Let GnuTLS autoload PKCS11 modules */
 #ifdef SUPPORT_TLS
 extern BOOL    gnutls_compat_mode;     /* Less security, more compatibility */
 extern BOOL    gnutls_allow_auto_pkcs11; /* Let GnuTLS autoload PKCS11 modules */

-extern uschar *gnutls_require_mac;     /* So some can be avoided */
-extern uschar *gnutls_require_kx;      /* So some can be avoided */
-extern uschar *gnutls_require_proto;   /* So some can be avoided */

 extern uschar *openssl_options;        /* OpenSSL compatibility options */
 extern const pcre *regex_STARTTLS;     /* For recognizing STARTTLS settings */
 extern uschar *openssl_options;        /* OpenSSL compatibility options */
 extern const pcre *regex_STARTTLS;     /* For recognizing STARTTLS settings */

-extern uschar *tls_advertise_hosts;    /* host for which TLS is advertised */

 extern uschar *tls_certificate;        /* Certificate file */
 extern uschar *tls_channelbinding_b64; /* string of base64 channel binding */
 extern uschar *tls_crl;                /* CRL File */
 extern int     tls_dh_max_bits;        /* don't accept higher lib suggestions */
 extern uschar *tls_dhparam;            /* DH param file */
 extern uschar *tls_certificate;        /* Certificate file */
 extern uschar *tls_channelbinding_b64; /* string of base64 channel binding */
 extern uschar *tls_crl;                /* CRL File */
 extern int     tls_dh_max_bits;        /* don't accept higher lib suggestions */
 extern uschar *tls_dhparam;            /* DH param file */

-#ifndef DISABLE_OCSP
+extern uschar *tls_eccurve;            /* EC curve */
+# ifndef DISABLE_OCSP

 extern uschar *tls_ocsp_file;          /* OCSP stapling proof file */
 extern uschar *tls_ocsp_file;          /* OCSP stapling proof file */

-#endif
-extern BOOL    tls_offered;            /* Server offered TLS */
+# endif

 extern uschar *tls_privatekey;         /* Private key file */
 extern BOOL    tls_remember_esmtp;     /* For YAEB */
 extern uschar *tls_require_ciphers;    /* So some can be avoided */
 extern uschar *tls_privatekey;         /* Private key file */
 extern BOOL    tls_remember_esmtp;     /* For YAEB */
 extern uschar *tls_require_ciphers;    /* So some can be avoided */


@@ -129,17 +126,22 @@ extern uschar *tls_try_verify_hosts;   /* Optional client verification */
 extern uschar *tls_verify_certificates;/* Path for certificates to check */
 extern uschar *tls_verify_hosts;       /* Mandatory client verification */
 #endif
 extern uschar *tls_verify_certificates;/* Path for certificates to check */
 extern uschar *tls_verify_hosts;       /* Mandatory client verification */
 #endif

+extern uschar *tls_advertise_hosts;    /* host for which TLS is advertised */

 
 extern uschar  *dsn_envid;             /* DSN envid string */
 extern int      dsn_ret;               /* DSN ret type*/
 extern const pcre  *regex_DSN;         /* For recognizing DSN settings */
 
 extern uschar  *dsn_envid;             /* DSN envid string */
 extern int      dsn_ret;               /* DSN ret type*/
 extern const pcre  *regex_DSN;         /* For recognizing DSN settings */

-extern BOOL     smtp_use_dsn;          /* Global for passed connections */

 extern uschar  *dsn_advertise_hosts;   /* host for which TLS is advertised */
 
 /* Input-reading functions for messages, so we can use special ones for
 incoming TCP/IP. */
 
 extern uschar  *dsn_advertise_hosts;   /* host for which TLS is advertised */
 
 /* Input-reading functions for messages, so we can use special ones for
 incoming TCP/IP. */
 

-extern int (*receive_getc)(void);
+extern int (*lwr_receive_getc)(unsigned);
+extern uschar * (*lwr_receive_getbuf)(unsigned *);
+extern int (*lwr_receive_ungetc)(int);
+extern int (*receive_getc)(unsigned);
+extern uschar * (*receive_getbuf)(unsigned *);
+extern void (*receive_get_cache)(void);

 extern int (*receive_ungetc)(int);
 extern int (*receive_feof)(void);
 extern int (*receive_ferror)(void);
 extern int (*receive_ungetc)(int);
 extern int (*receive_feof)(void);
 extern int (*receive_ferror)(void);


@@ -155,11 +157,12 @@ extern const uschar **address_expansions[ADDRESS_EXPANSIONS_COUNT];
 /* General global variables */
 
 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */
 /* General global variables */
 
 extern BOOL    accept_8bitmime;        /* Allow *BITMIME incoming */

-extern int     body_8bitmime;          /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */
+extern uschar *add_environment;        /* List of environment variables to add */

 extern header_line *acl_added_headers; /* Headers added by an ACL */
 extern tree_node *acl_anchor;          /* Tree of named ACLs */
 extern uschar *acl_arg[9];             /* Argument to ACL call */
 extern int     acl_narg;               /* Number of arguments to ACL call */
 extern header_line *acl_added_headers; /* Headers added by an ACL */
 extern tree_node *acl_anchor;          /* Tree of named ACLs */
 extern uschar *acl_arg[9];             /* Argument to ACL call */
 extern int     acl_narg;               /* Number of arguments to ACL call */

+extern int     acl_level;             /* Nesting depth and debug indent */

 extern uschar *acl_not_smtp;           /* ACL run for non-SMTP messages */
 #ifdef WITH_CONTENT_SCAN
 extern uschar *acl_not_smtp_mime;      /* For MIME parts of ditto */
 extern uschar *acl_not_smtp;           /* ACL run for non-SMTP messages */
 #ifdef WITH_CONTENT_SCAN
 extern uschar *acl_not_smtp_mime;      /* For MIME parts of ditto */


@@ -192,7 +195,7 @@ extern uschar *acl_smtp_starttls;      /* ACL run for STARTTLS */
 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 extern tree_node *acl_var_c;           /* ACL connection variables */
 extern uschar *acl_smtp_vrfy;          /* ACL run for VRFY */
 extern BOOL    acl_temp_details;       /* TRUE to give details for 4xx error */
 extern tree_node *acl_var_c;           /* ACL connection variables */

-extern tree_node *acl_var_m;           /* ACL messsage variables */
+extern tree_node *acl_var_m;           /* ACL message variables */

 extern uschar *acl_verify_message;     /* User message for verify failure */
 extern string_item *acl_warn_logged;   /* Logged lines */
 extern uschar *acl_wherecodes[];       /* Response codes for ACL fails */
 extern uschar *acl_verify_message;     /* User message for verify failure */
 extern string_item *acl_warn_logged;   /* Logged lines */
 extern uschar *acl_wherecodes[];       /* Response codes for ACL fails */


@@ -213,11 +216,19 @@ extern BOOL    allow_domain_literals;  /* As it says */
 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 extern BOOL    allow_unqualified_recipient; /* As it says */
 extern BOOL    allow_unqualified_sender; /* Ditto */
 extern BOOL    allow_mx_to_ip;         /* Allow MX records to -> ip address */
 extern BOOL    allow_unqualified_recipient; /* As it says */
 extern BOOL    allow_unqualified_sender; /* Ditto */

+#ifdef EXPERIMENTAL_ARC
+struct arc_set *arc_received;         /* highest ARC instance evaluation struct */
+extern int     arc_received_instance;  /* highest ARC instance number in headers */
+extern int     arc_oldest_pass;        /* lowest passing instance number in headers */
+extern const uschar *arc_state;               /* verification state */
+extern const uschar *arc_state_reason;
+#endif

 extern BOOL    allow_utf8_domains;     /* For experimenting */
 extern uschar *authenticated_fail_id;  /* ID that failed authentication */
 extern uschar *authenticated_id;       /* ID that was authenticated */
 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */
 extern BOOL    allow_utf8_domains;     /* For experimenting */
 extern uschar *authenticated_fail_id;  /* ID that failed authentication */
 extern uschar *authenticated_id;       /* ID that was authenticated */
 extern uschar *authenticated_sender;   /* From AUTH on MAIL */
 extern BOOL    authentication_failed;  /* TRUE if AUTH was tried and failed */

+extern BOOL    authentication_local;   /* TRUE if non-smtp (implicit authentication) */

 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 extern auth_instance *auths;           /* Chain of instantiated auths */
 extern uschar *auth_advertise_hosts;   /* Only advertise to these */
 extern auth_info auths_available[];    /* Vector of available auth mechanisms */
 extern auth_instance *auths;           /* Chain of instantiated auths */


@@ -245,15 +256,18 @@ extern int     bmi_deliver;            /* Flag that determines if the message sh
 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 #endif
 extern int     bmi_run;                /* Flag that determines if message should be run through Brightmail server */
 extern uschar *bmi_verdicts;           /* BASE64-encoded verdicts with recipient lists */
 #endif

+extern int     bsmtp_transaction_linecount; /* Start of last transaction */
+extern int     body_8bitmime;          /* sender declared BODY= ; 7=7BIT, 8=8BITMIME */

 extern uschar *bounce_message_file;    /* Template file */
 extern uschar *bounce_message_text;    /* One-liner */
 extern uschar *bounce_recipient;       /* When writing an errmsg */
 extern BOOL    bounce_return_body;     /* Include body in returned message */
 extern uschar *bounce_message_file;    /* Template file */
 extern uschar *bounce_message_text;    /* One-liner */
 extern uschar *bounce_recipient;       /* When writing an errmsg */
 extern BOOL    bounce_return_body;     /* Include body in returned message */

+extern int     bounce_return_linesize_limit; /* Max line length in return */

 extern BOOL    bounce_return_message;  /* Include message in bounce */
 extern int     bounce_return_size_limit; /* Max amount to return */
 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */
 extern BOOL    bounce_return_message;  /* Include message in bounce */
 extern int     bounce_return_size_limit; /* Max amount to return */
 extern uschar *bounce_sender_authentication; /* AUTH address for bounces */

-extern int     bsmtp_transaction_linecount; /* Start of last transaction */

 
 

+extern uschar *callout_address;         /* Address used for a malware/spamd/verify etc. callout */

 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */
 extern int     callout_cache_domain_positive_expire; /* Time for positive domain callout cache records to expire */
 extern int     callout_cache_domain_negative_expire; /* Time for negative domain callout cache records to expire */
 extern int     callout_cache_positive_expire; /* Time for positive callout cache records to expire */


@@ -265,25 +279,28 @@ extern int     check_log_space;        /* Minimum for message acceptance */
 extern BOOL    check_rfc2047_length;   /* Check RFC 2047 encoded string length */
 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 extern int     check_spool_space;      /* Minimum for message acceptance */
 extern BOOL    check_rfc2047_length;   /* Check RFC 2047 encoded string length */
 extern int     check_spool_inodes;     /* Minimum for message acceptance */
 extern int     check_spool_space;      /* Minimum for message acceptance */

+extern uschar *chunking_advertise_hosts;    /* RFC 3030 CHUNKING */
+extern unsigned chunking_datasize;
+extern unsigned chunking_data_left;
+extern BOOL    chunking_offered;
+extern chunking_state_t chunking_state;

 extern uschar *client_authenticator;        /* Authenticator name used for smtp delivery */
 extern uschar *client_authenticated_id;     /* "login" name used for SMTP AUTH */
 extern uschar *client_authenticated_sender; /* AUTH option to SMTP MAIL FROM (not yet used) */
 extern int     clmacro_count;          /* Number of command line macros */
 extern uschar *clmacros[];             /* Copy of them, for re-exec */
 extern uschar *client_authenticator;        /* Authenticator name used for smtp delivery */
 extern uschar *client_authenticated_id;     /* "login" name used for SMTP AUTH */
 extern uschar *client_authenticated_sender; /* AUTH option to SMTP MAIL FROM (not yet used) */
 extern int     clmacro_count;          /* Number of command line macros */
 extern uschar *clmacros[];             /* Copy of them, for re-exec */

+extern BOOL    commandline_checks_require_admin; /* belt and braces for insecure setups */

 extern int     connection_max_messages;/* Max down one SMTP connection */
 extern BOOL    config_changed;         /* True if -C used */
 extern FILE   *config_file;            /* Configuration file */
 extern int     connection_max_messages;/* Max down one SMTP connection */
 extern BOOL    config_changed;         /* True if -C used */
 extern FILE   *config_file;            /* Configuration file */

-extern uschar *config_filename;        /* Configuration file name */
-#ifdef CONFIGURE_GROUP
+extern const uschar *config_filename;  /* Configuration file name */

 extern gid_t   config_gid;             /* Additional group owner */
 extern gid_t   config_gid;             /* Additional group owner */

-#endif

 extern int     config_lineno;          /* Line number */
 extern uschar *config_main_filelist;   /* List of possible config files */
 extern uschar *config_main_filename;   /* File name actually used */
 extern uschar *config_main_directory;  /* Directory where the main config file was found */
 extern int     config_lineno;          /* Line number */
 extern uschar *config_main_filelist;   /* List of possible config files */
 extern uschar *config_main_filename;   /* File name actually used */
 extern uschar *config_main_directory;  /* Directory where the main config file was found */

-#ifdef CONFIGURE_OWNER

 extern uid_t   config_uid;             /* Additional owner */
 extern uid_t   config_uid;             /* Additional owner */

-#endif
+extern uschar *continue_proxy_cipher;  /* TLS cipher for proxied continued delivery */

 extern uschar *continue_hostname;      /* Host for continued delivery */
 extern uschar *continue_host_address;  /* IP address for ditto */
 extern BOOL    continue_more;          /* Flag more addresses waiting */
 extern uschar *continue_hostname;      /* Host for continued delivery */
 extern uschar *continue_host_address;  /* IP address for ditto */
 extern BOOL    continue_more;          /* Flag more addresses waiting */


@@ -293,10 +310,17 @@ extern uschar *continue_transport;     /* Transport for continued delivery */
 extern uschar *csa_status;             /* Client SMTP Authorization result */
 
 typedef struct {
 extern uschar *csa_status;             /* Client SMTP Authorization result */
 
 typedef struct {

-  BOOL         delivery;               /* When to attempt */
+  unsigned     callout_hold_only:1;    /* Conn is only for verify callout */
+  unsigned     delivery:1;             /* When to attempt */
+  unsigned     defer_pass:1;           /* Pass 4xx to caller rather than spooling */
+  unsigned     is_tls:1;              /* Conn has TLS active */

   int          fd;                     /* Open connection */
   int          nrcpt;                  /* Count of addresses */
   int          fd;                     /* Open connection */
   int          nrcpt;                  /* Count of addresses */

+  uschar *     transport;             /* Name of transport */

   uschar *     interface;              /* (address of) */
   uschar *     interface;              /* (address of) */

+  uschar *     snd_ip;                /* sending_ip_address */
+  int         snd_port;               /* sending_port */
+  unsigned     peer_options;          /* smtp_peer_options */

   host_item    host;                   /* Host used */
   address_item addr;                   /* (Chain of) addresses */
 } cut_t;
   host_item    host;                   /* Host used */
   address_item addr;                   /* (Chain of) addresses */
 } cut_t;


@@ -318,8 +342,10 @@ extern uschar *dccifd_options;         /* options for the dccifd daemon */
 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 extern int     debug_fd;               /* The fd for debug_file */
 extern FILE   *debug_file;             /* Where to write debugging info */
 extern BOOL    debug_daemon;           /* Debug the daemon process only */
 extern int     debug_fd;               /* The fd for debug_file */
 extern FILE   *debug_file;             /* Where to write debugging info */

+extern int     debug_notall[];         /* Debug options excluded from +all */

 extern bit_table debug_options[];      /* Table of debug options */
 extern int     debug_options_count;    /* Size of table */
 extern bit_table debug_options[];      /* Table of debug options */
 extern int     debug_options_count;    /* Size of table */

+extern BOOL    debug_store;           /* Do extra checks on store_reset */

 extern int     delay_warning[];        /* Times between warnings */
 extern uschar *delay_warning_condition; /* Condition string for warnings */
 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */
 extern int     delay_warning[];        /* Times between warnings */
 extern uschar *delay_warning_condition; /* Condition string for warnings */
 extern BOOL    delivery_date_remove;   /* Remove delivery-date headers */


@@ -357,11 +383,6 @@ extern uschar *deliver_selectstring;   /* For selecting by recipient */
 extern BOOL    deliver_selectstring_regex; /* String is regex */
 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */
 extern BOOL    deliver_selectstring_regex; /* String is regex */
 extern uschar *deliver_selectstring_sender; /* For selecting by sender */
 extern BOOL    deliver_selectstring_sender_regex; /* String is regex */

-#ifdef WITH_OLD_DEMIME
-extern int     demime_errorlevel;      /* Severity of MIME error */
-extern int     demime_ok;              /* Nonzero if message has been demimed */
-extern uschar *demime_reason;          /* Reason for broken MIME container */
-#endif

 extern BOOL    disable_callout_flush;  /* Don't flush before callouts */
 extern BOOL    disable_delay_flush;    /* Don't flush before "delay" in ACL */
 #ifdef ENABLE_DISABLE_FSYNC
 extern BOOL    disable_callout_flush;  /* Don't flush before callouts */
 extern BOOL    disable_delay_flush;    /* Don't flush before "delay" in ACL */
 #ifdef ENABLE_DISABLE_FSYNC


@@ -371,17 +392,20 @@ extern BOOL    disable_ipv6;           /* Don't do any IPv6 things */
 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 
 #ifndef DISABLE_DKIM
 extern BOOL    disable_logging;        /* Disables log writing when TRUE */
 
 #ifndef DISABLE_DKIM

+extern BOOL    dkim_collect_input;     /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */

 extern uschar *dkim_cur_signer;        /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */
 extern uschar *dkim_cur_signer;        /* Expansion variable, holds the current "signer" domain or identity during a acl_smtp_dkim run */

+extern BOOL    dkim_disable_verify;    /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
+extern int     dkim_key_length;        /* Expansion variable, length of signing key in bits */

 extern uschar *dkim_signers;           /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
 extern uschar *dkim_signing_domain;    /* Expansion variable, domain used for signing a message. */
 extern uschar *dkim_signing_selector;  /* Expansion variable, selector used for signing a message. */
 extern uschar *dkim_signers;           /* Expansion variable, holds colon-separated list of domains and identities that have signed a message */
 extern uschar *dkim_signing_domain;    /* Expansion variable, domain used for signing a message. */
 extern uschar *dkim_signing_selector;  /* Expansion variable, selector used for signing a message. */

+extern uschar *dkim_verify_overall;    /* First successful domain verified, or null */

 extern uschar *dkim_verify_signers;    /* Colon-separated list of domains for each of which we call the DKIM ACL */
 extern uschar *dkim_verify_signers;    /* Colon-separated list of domains for each of which we call the DKIM ACL */

-extern BOOL    dkim_collect_input;     /* Runtime flag that tracks wether SMTP input is fed to DKIM validation */
-extern BOOL    dkim_disable_verify;    /* Set via ACL control statement. When set, DKIM verification is disabled for the current message */
+extern uschar *dkim_verify_status;     /* result for this signature */
+extern uschar *dkim_verify_reason;     /* result for this signature */

 #endif
 #ifdef EXPERIMENTAL_DMARC
 extern BOOL    dmarc_has_been_checked; /* Global variable to check if test has been called yet */
 #endif
 #ifdef EXPERIMENTAL_DMARC
 extern BOOL    dmarc_has_been_checked; /* Global variable to check if test has been called yet */

-extern uschar *dmarc_ar_header;        /* Expansion variable, suggested header for dmarc auth results */

 extern uschar *dmarc_domain_policy;    /* Expansion for declared policy of used domain */
 extern uschar *dmarc_forensic_sender;  /* Set sender address for forensic reports */
 extern uschar *dmarc_history_file;     /* Expansion variable, file to store dmarc results */
 extern uschar *dmarc_domain_policy;    /* Expansion for declared policy of used domain */
 extern uschar *dmarc_forensic_sender;  /* Set sender address for forensic reports */
 extern uschar *dmarc_history_file;     /* Expansion variable, file to store dmarc results */


@@ -397,12 +421,13 @@ extern uschar *dns_again_means_nonexist; /* Domains that are badly set up */
 extern int     dns_csa_search_limit;   /* How deep to search for CSA SRV records */
 extern BOOL    dns_csa_use_reverse;    /* Check CSA in reverse DNS? (non-standard) */
 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */
 extern int     dns_csa_search_limit;   /* How deep to search for CSA SRV records */
 extern BOOL    dns_csa_use_reverse;    /* Check CSA in reverse DNS? (non-standard) */
 extern uschar *dns_ipv4_lookup;        /* For these domains, don't look for AAAA (or A6) */

-#ifdef EXPERIMENTAL_DANE
+#ifdef SUPPORT_DANE

 extern int     dns_dane_ok;            /* Ok to use DANE when checking TLS authenticity */
 #endif
 extern int     dns_retrans;            /* Retransmission time setting */
 extern int     dns_retry;              /* Number of retries */
 extern int     dns_dnssec_ok;          /* When constructing DNS query, set DO flag */
 extern int     dns_dane_ok;            /* Ok to use DANE when checking TLS authenticity */
 #endif
 extern int     dns_retrans;            /* Retransmission time setting */
 extern int     dns_retry;              /* Number of retries */
 extern int     dns_dnssec_ok;          /* When constructing DNS query, set DO flag */

+extern uschar *dns_trust_aa;           /* DNSSEC trust AA as AD */

 extern int     dns_use_edns0;          /* Coerce EDNS0 support on/off in resolver. */
 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 extern uschar *dnslist_matched;        /* DNS (black) list matched key */
 extern int     dns_use_edns0;          /* Coerce EDNS0 support on/off in resolver. */
 extern uschar *dnslist_domain;         /* DNS (black) list domain */
 extern uschar *dnslist_matched;        /* DNS (black) list matched key */


@@ -419,14 +444,14 @@ extern BOOL    drop_cr;                /* For broken local MUAs */
 extern uschar *dsn_from;               /* From: string for DSNs */
 
 extern BOOL    enable_dollar_recipients; /* Make $recipients available */
 extern uschar *dsn_from;               /* From: string for DSNs */
 
 extern BOOL    enable_dollar_recipients; /* Make $recipients available */

-extern int     envelope_to_remove;     /* Remove envelope_to_headers */
+extern BOOL    envelope_to_remove;     /* Remove envelope_to_headers */

 extern int     errno_quota;            /* Quota errno in this OS */
 extern int     error_handling;         /* Error handling style */
 extern uschar *errors_copy;            /* For taking copies of errors */
 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 extern int     errors_sender_rc;       /* Return after message to sender*/
 
 extern int     errno_quota;            /* Quota errno in this OS */
 extern int     error_handling;         /* Error handling style */
 extern uschar *errors_copy;            /* For taking copies of errors */
 extern uschar *errors_reply_to;        /* Reply-to for error messages */
 extern int     errors_sender_rc;       /* Return after message to sender*/
 

-#ifdef EXPERIMENTAL_EVENT
+#ifndef DISABLE_EVENT

 extern uschar *event_action;           /* expansion for delivery events */
 extern uschar *event_data;            /* event data */
 extern int     event_defer_errno;      /* error number set when a remote delivery is deferred with a host error */
 extern uschar *event_action;           /* expansion for delivery events */
 extern uschar *event_data;            /* event data */
 extern int     event_defer_errno;      /* error number set when a remote delivery is deferred with a host error */


@@ -439,6 +464,7 @@ extern uschar *exim_path;              /* Path to exec exim */
 extern const uschar *exim_sieve_extension_list[]; /* list of sieve extensions */
 extern uid_t   exim_uid;               /* Non-root uid for exim */
 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */
 extern const uschar *exim_sieve_extension_list[]; /* list of sieve extensions */
 extern uid_t   exim_uid;               /* Non-root uid for exim */
 extern BOOL    exim_uid_set;           /* TRUE if exim_uid set */

+extern int     expand_level;          /* Nesting depth; indent for debug */

 extern int     expand_forbid;          /* RDO flags for forbidding things */
 extern int     expand_nlength[];       /* Lengths of numbered strings */
 extern int     expand_nmax;            /* Max numerical value */
 extern int     expand_forbid;          /* RDO flags for forbidding things */
 extern int     expand_nlength[];       /* Lengths of numbered strings */
 extern int     expand_nmax;            /* Max numerical value */


@@ -458,9 +484,6 @@ extern uschar *filter_test_ufile;      /* User filter test file */
 extern uschar *filter_thisaddress;     /* For address looping */
 extern int     finduser_retries;       /* Retry count for getpwnam() */
 extern uid_t   fixed_never_users[];    /* Can't be overridden */
 extern uschar *filter_thisaddress;     /* For address looping */
 extern int     finduser_retries;       /* Retry count for getpwnam() */
 extern uid_t   fixed_never_users[];    /* Can't be overridden */

-#ifdef WITH_OLD_DEMIME
-extern uschar *found_extension;        /* demime acl condition: file extension found */
-#endif

 extern uschar *freeze_tell;            /* Message on (some) freezings */
 extern uschar *freeze_tell_config;     /* The configured setting */
 extern uschar *fudged_queue_times;     /* For use in test harness */
 extern uschar *freeze_tell;            /* Message on (some) freezings */
 extern uschar *freeze_tell_config;     /* The configured setting */
 extern uschar *fudged_queue_times;     /* For use in test harness */


@@ -505,11 +528,13 @@ extern BOOL    ignore_fromline_local;  /* Local SMTP ignore fromline */
 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 extern BOOL    inetd_wait_mode;        /* Whether running in inetd wait mode */
 extern int     inetd_wait_timeout;     /* Timeout for inetd wait mode */
 extern uschar *ignore_fromline_hosts;  /* Hosts permitted to send "From " */
 extern BOOL    inetd_wait_mode;        /* Whether running in inetd wait mode */
 extern int     inetd_wait_timeout;     /* Timeout for inetd wait mode */

+extern uschar *initial_cwd;            /* The directory we where in at startup */

 extern BOOL    is_inetd;               /* True for inetd calls */
 extern uschar *iterate_item;           /* Item from iterate list */
 
 extern int     journal_fd;             /* Fd for journal file */
 
 extern BOOL    is_inetd;               /* True for inetd calls */
 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 */
 extern int     keep_malformed;         /* Time to keep malformed messages */
 
 extern uschar *eldap_dn;               /* Where LDAP DNs are left */


@@ -529,16 +554,17 @@ extern uid_t   local_user_uid;         /* As it says; may be set in routers */
 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 extern int     localpartlist_count;    /* Number defined */
 extern uschar *log_buffer;             /* For constructing log entries */
 extern tree_node *localpartlist_anchor;/* Tree of defined localpart lists */
 extern int     localpartlist_count;    /* Number defined */
 extern uschar *log_buffer;             /* For constructing log entries */

-extern unsigned int log_extra_selector;/* Bit map of logging options other than used by log_write() */
+extern int     log_default[];          /* Initialization list for log_selector */

 extern uschar *log_file_path;          /* If unset, use default */
 extern uschar *log_file_path;          /* If unset, use default */

+extern int     log_notall[];           /* Log options excluded from +all */

 extern bit_table log_options[];        /* Table of options */
 extern int     log_options_count;      /* Size of table */
 extern int     log_reject_target;      /* Target log for ACL rejections */
 extern bit_table log_options[];        /* Table of options */
 extern int     log_options_count;      /* Size of table */
 extern int     log_reject_target;      /* Target log for ACL rejections */

+extern unsigned int log_selector[];    /* Bit map of logging options */

 extern uschar *log_selector_string;    /* As supplied in the config */
 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */
 extern uschar *log_selector_string;    /* As supplied in the config */
 extern FILE   *log_stderr;             /* Copy of stderr for log use, or NULL */
 extern BOOL    log_testing_mode;       /* TRUE in various testing modes */
 extern BOOL    log_timezone;           /* TRUE to include the timezone in log lines */

-extern unsigned int log_write_selector;/* Bit map of logging options for log_write() */

 extern uschar *login_sender_address;   /* The actual sender address */
 extern lookup_info **lookup_list;      /* Array of pointers to available lookups */
 extern int     lookup_list_count;      /* Number of entries in the list */
 extern uschar *login_sender_address;   /* The actual sender address */
 extern lookup_info **lookup_list;      /* Array of pointers to available lookups */
 extern int     lookup_list_count;      /* Number of entries in the list */


@@ -547,6 +573,8 @@ extern int     lookup_open_max;        /* Max lookup files to cache */
 extern uschar *lookup_value;           /* Value looked up from file */
 
 extern macro_item *macros;             /* Configuration macros */
 extern uschar *lookup_value;           /* Value looked up from file */
 
 extern macro_item *macros;             /* Configuration macros */

+extern macro_item *macros_user;        /* Non-builtin configuration macros */
+extern macro_item *mlast;              /* Last item in macro list */

 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 #ifdef WITH_CONTENT_SCAN
 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */
 extern uschar *mailstore_basename;     /* For mailstore deliveries */
 #ifdef WITH_CONTENT_SCAN
 extern uschar *malware_name;           /* Name of virus or malware ("W32/Klez-H") */


@@ -570,7 +598,7 @@ extern int     message_linecount;      /* As it says */
 extern BOOL    message_logs;           /* TRUE to write message logs */
 extern int     message_size;           /* Size of message */
 extern uschar *message_size_limit;     /* As it says */
 extern BOOL    message_logs;           /* TRUE to write message logs */
 extern int     message_size;           /* Size of message */
 extern uschar *message_size_limit;     /* As it says */

-#ifdef EXPERIMENTAL_INTERNATIONAL
+#ifdef SUPPORT_I18N

 extern BOOL    message_smtputf8;       /* Internationalized mail handling */
 extern int     message_utf8_downconvert; /* convert from utf8 */
 const extern pcre *regex_UTF8;         /* For recognizing SMTPUTF8 settings */
 extern BOOL    message_smtputf8;       /* Internationalized mail handling */
 extern int     message_utf8_downconvert; /* convert from utf8 */
 const extern pcre *regex_UTF8;         /* For recognizing SMTPUTF8 settings */


@@ -606,6 +634,9 @@ extern BOOL    no_mbox_unspool;        /* don't unlink files in /scan directory
 #endif
 extern BOOL    no_multiline_responses; /* For broken clients */
 
 #endif
 extern BOOL    no_multiline_responses; /* For broken clients */
 

+extern const int on;                   /* For setsockopt */
+extern const int off;
+

 extern optionlist optionlist_auths[];      /* These option lists are made */
 extern int     optionlist_auths_size;      /* global so that readconf can */
 extern optionlist optionlist_routers[];    /* see them for printing out   */
 extern optionlist optionlist_auths[];      /* These option lists are made */
 extern int     optionlist_auths_size;      /* global so that readconf can */
 extern optionlist optionlist_routers[];    /* see them for printing out   */


@@ -639,14 +670,14 @@ extern int     process_info_len;
 extern uschar *process_log_path;       /* Alternate path */
 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 
 extern uschar *process_log_path;       /* Alternate path */
 extern BOOL    prod_requires_admin;    /* TRUE if prodding requires admin */
 

-#ifdef EXPERIMENTAL_PROXY
-extern uschar *proxy_host_address;     /* IP of host being proxied */
-extern int     proxy_host_port;        /* Port of host being proxied */
-extern uschar *proxy_required_hosts;   /* Hostlist which (require) use proxy protocol */
+#if defined(SUPPORT_PROXY) || defined(SUPPORT_SOCKS)
+extern uschar *hosts_proxy;            /* Hostlist which (require) use proxy protocol */
+extern uschar *proxy_external_address; /* IP of remote interface of proxy */
+extern int     proxy_external_port;    /* Port on remote interface of proxy */
+extern uschar *proxy_local_address;    /* IP of local interface of proxy */
+extern int     proxy_local_port;       /* Port on local interface of proxy */

 extern BOOL    proxy_session;          /* TRUE if receiving mail from valid proxy  */
 extern BOOL    proxy_session_failed;   /* TRUE if required proxy negotiation failed */
 extern BOOL    proxy_session;          /* TRUE if receiving mail from valid proxy  */
 extern BOOL    proxy_session_failed;   /* TRUE if required proxy negotiation failed */

-extern uschar *proxy_target_address;   /* IP of proxy server inbound */
-extern int     proxy_target_port;      /* Port of proxy server inbound */

 #endif
 
 extern uschar *prvscheck_address;      /* Set during prvscheck expansion item */
 #endif
 
 extern uschar *prvscheck_address;      /* Set during prvscheck expansion item */


@@ -666,6 +697,7 @@ extern BOOL    queue_running;          /* TRUE for queue running process and */
 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 extern int     queue_interval;         /* Queue running interval */
 extern pid_t   queue_run_pid;          /* PID of the queue running process or 0 */
 extern int     queue_run_pipe;         /* Pipe for synchronizing */
 extern int     queue_interval;         /* Queue running interval */

+extern uschar *queue_name;             /* Name of queue, if nondefault spooling */

 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 extern int     queue_only_load;        /* Max load before auto-queue */
 extern BOOL    queue_only_load_latch;  /* Latch queue_only_load TRUE */
 extern BOOL    queue_only;             /* TRUE to disable immediate delivery */
 extern int     queue_only_load;        /* Max load before auto-queue */
 extern BOOL    queue_only_load_latch;  /* Latch queue_only_load TRUE */


@@ -673,8 +705,8 @@ extern uschar *queue_only_file;        /* Queue if file exists/not-exists */
 extern BOOL    queue_only_override;    /* Allow override from command line */
 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 extern BOOL    queue_run_in_order;     /* As opposed to random */
 extern BOOL    queue_only_override;    /* Allow override from command line */
 extern BOOL    queue_only_policy;      /* ACL or local_scan wants queue_only */
 extern BOOL    queue_run_in_order;     /* As opposed to random */

-extern int     queue_run_max;          /* Max queue runners */
-extern BOOL    queue_smtp;             /* Disable all immediate STMP (-odqs)*/
+extern uschar *queue_run_max;          /* Max queue runners */
+extern BOOL    queue_smtp;             /* Disable all immediate SMTP (-odqs)*/

 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 
 extern unsigned int random_seed;       /* Seed for random numbers */
 extern uschar *queue_smtp_domains;     /* Ditto, for these domains */
 
 extern unsigned int random_seed;       /* Seed for random numbers */


@@ -699,22 +731,25 @@ extern int     received_count;         /* Count of Received: headers */
 extern uschar *received_for;           /* For "for" field */
 extern uschar *received_header_text;   /* Definition of Received: header */
 extern int     received_headers_max;   /* Max count of Received: headers */
 extern uschar *received_for;           /* For "for" field */
 extern uschar *received_header_text;   /* Definition of Received: header */
 extern int     received_headers_max;   /* Max count of Received: headers */

-extern int     received_time;          /* Time the message was received */
+extern struct timeval received_time;   /* Time the message was received */
+extern struct timeval received_time_taken; /* Interval the message took to be received */

 extern uschar *recipient_data;         /* lookup data for recipients */
 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 extern uschar *recipient_verify_failure; /* What went wrong */
 extern BOOL    recipients_discarded;   /* By an ACL */
 extern int     recipients_list_max;    /* Maximum number fitting in list */
 extern int     recipients_max;         /* Max permitted */
 extern uschar *recipient_data;         /* lookup data for recipients */
 extern uschar *recipient_unqualified_hosts; /* Permitted unqualified recipients */
 extern uschar *recipient_verify_failure; /* What went wrong */
 extern BOOL    recipients_discarded;   /* By an ACL */
 extern int     recipients_list_max;    /* Maximum number fitting in list */
 extern int     recipients_max;         /* Max permitted */

-extern int     recipients_max_reject;  /* If TRUE, reject whole message */
+extern BOOL    recipients_max_reject;  /* If TRUE, reject whole message */

 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 extern const pcre  *regex_From;        /* For recognizing "From_" lines */
 extern const pcre *regex_AUTH;         /* For recognizing AUTH settings */
 extern const pcre  *regex_check_dns_names; /* For DNS name checking */
 extern const pcre  *regex_From;        /* For recognizing "From_" lines */

+extern const pcre  *regex_CHUNKING;    /* For recognizing CHUNKING (RFC 3030) */

 extern const pcre  *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */
 extern const pcre  *regex_IGNOREQUOTA; /* For recognizing IGNOREQUOTA (LMTP) */
 extern const pcre  *regex_PIPELINING;  /* For recognizing PIPELINING */
 extern const pcre  *regex_SIZE;        /* For recognizing SIZE settings */

-extern const pcre  *regex_smtp_code;   /* For recognizing SMTP codes */

 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */
 extern const pcre  *regex_ismsgid;     /* Compiled r.e. for message it */

+extern const pcre  *regex_smtp_code;   /* For recognizing SMTP codes */
+extern uschar *regex_vars[];           /* $regexN variables */

 #ifdef WHITELIST_D_MACROS
 extern const pcre  *regex_whitelisted_macro; /* For -D macro values */
 #endif
 #ifdef WHITELIST_D_MACROS
 extern const pcre  *regex_whitelisted_macro; /* For -D macro values */
 #endif


@@ -755,8 +790,10 @@ extern uschar *sender_address_unrewritten; /* Set if rewritten by verify */
 extern uschar *sender_data;            /* lookup result for senders */
 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 extern uschar *sender_fullhost;        /* Sender host name + address */
 extern uschar *sender_data;            /* lookup result for senders */
 extern unsigned int sender_domain_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for sender domain */
 extern uschar *sender_fullhost;        /* Sender host name + address */

+extern BOOL    sender_helo_dnssec;     /* True if HELO verify used DNS and was DNSSEC */

 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 extern uschar **sender_host_aliases;   /* Points to list of alias names */
 extern uschar *sender_helo_name;       /* Host name from HELO/EHLO */
 extern uschar **sender_host_aliases;   /* Points to list of alias names */

+extern uschar *sender_host_auth_pubname; /* Public-name of authentication method */

 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 extern BOOL    sender_host_dnssec;     /* true if sender_host_name verified in DNSSEC */
 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */
 extern unsigned int sender_host_cache[(MAX_NAMED_LIST * 2)/32]; /* Cache bits for incoming host */
 extern BOOL    sender_host_dnssec;     /* true if sender_host_name verified in DNSSEC */
 extern BOOL    sender_host_notsocket;  /* Set for -bs and -bS */


@@ -777,7 +814,7 @@ extern uschar *sending_ip_address;     /* Address of outgoing (SMTP) interface *
 extern int     sending_port;           /* Port of outgoing interface */
 extern SIGNAL_BOOL sigalrm_seen;       /* Flag for sigalrm_handler */
 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */
 extern int     sending_port;           /* Port of outgoing interface */
 extern SIGNAL_BOOL sigalrm_seen;       /* Flag for sigalrm_handler */
 extern uschar **sighup_argv;           /* Args for re-execing after SIGHUP */

-extern int     slow_lookup_log;        /* Log DNS lookups taking loger than N millisecs */
+extern int     slow_lookup_log;        /* Log DNS lookups taking longer than N millisecs */

 extern int     smtp_accept_count;      /* Count of connections */
 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 extern int     smtp_accept_max;        /* Max SMTP connections */
 extern int     smtp_accept_count;      /* Count of connections */
 extern BOOL    smtp_accept_keepalive;  /* Set keepalive on incoming */
 extern int     smtp_accept_max;        /* Max SMTP connections */


@@ -795,7 +832,7 @@ extern BOOL    smtp_check_spool_space; /* TRUE to check SMTP SIZE value */
 extern int     smtp_ch_index;          /* Index in smtp_connection_had */
 extern uschar *smtp_cmd_argument;      /* For all SMTP commands */
 extern uschar *smtp_cmd_buffer;        /* SMTP command buffer */
 extern int     smtp_ch_index;          /* Index in smtp_connection_had */
 extern uschar *smtp_cmd_argument;      /* For all SMTP commands */
 extern uschar *smtp_cmd_buffer;        /* SMTP command buffer */

-extern time_t  smtp_connection_start;  /* Start time of SMTP connection */
+extern struct timeval smtp_connection_start; /* Start time of SMTP connection */

 extern uschar  smtp_connection_had[];  /* Recent SMTP commands */
 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 extern double  smtp_delay_mail;        /* Current MAIL delay */
 extern uschar  smtp_connection_had[];  /* Recent SMTP commands */
 extern int     smtp_connect_backlog;   /* Max backlog permitted */
 extern double  smtp_delay_mail;        /* Current MAIL delay */


@@ -826,9 +863,9 @@ extern int     smtp_rlr_base;          /* Base interval for RCPT rate limit */
 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 extern int     smtp_rlr_limit;         /* Max delay */
 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */
 extern double  smtp_rlr_factor;        /* Factor for RCPT rate limit */
 extern int     smtp_rlr_limit;         /* Max delay */
 extern int     smtp_rlr_threshold;     /* Threshold for RCPT rate limit */

-extern BOOL    smtp_use_pipelining;    /* Global for passed connections */
-extern BOOL    smtp_use_size;          /* Global for passed connections */
-#ifdef EXPERIMENTAL_INTERNATIONAL
+extern unsigned smtp_peer_options;     /* Global flags for passed connections */
+extern unsigned smtp_peer_options_wrap; /* stacked version hidden by TLS */
+#ifdef SUPPORT_I18N

 extern uschar *smtputf8_advertise_hosts; /* ingress control */
 #endif
 
 extern uschar *smtputf8_advertise_hosts; /* ingress control */
 #endif
 


@@ -840,15 +877,18 @@ extern uschar *spam_action;            /* the spamd recommended-action */
 extern uschar *spam_score;             /* the spam score (float) */
 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 #endif
 extern uschar *spam_score;             /* the spam score (float) */
 extern uschar *spam_score_int;         /* spam_score * 10 (int) */
 #endif

-#ifdef EXPERIMENTAL_SPF
+#ifdef SUPPORT_SPF

 extern uschar *spf_guess;              /* spf best-guess record */
 extern uschar *spf_header_comment;     /* spf header comment */
 extern uschar *spf_received;           /* Received-SPF: header */
 extern uschar *spf_result;             /* spf result in string form */
 extern uschar *spf_guess;              /* spf best-guess record */
 extern uschar *spf_header_comment;     /* spf header comment */
 extern uschar *spf_received;           /* Received-SPF: header */
 extern uschar *spf_result;             /* spf result in string form */

+extern BOOL    spf_result_guessed;     /* spf result is of best-guess operation */

 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 #endif
 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 extern uschar *spool_directory;        /* Name of spool directory */
 extern uschar *spf_smtp_comment;       /* spf comment to include in SMTP reply */
 #endif
 extern BOOL    split_spool_directory;  /* TRUE to use multiple subdirs */
 extern uschar *spool_directory;        /* Name of spool directory */

+extern BOOL    spool_file_wireformat;  /* current -D file has CRLF rather than NL */
+extern BOOL    spool_wireformat;       /* can write wireformat -D files */

 #ifdef EXPERIMENTAL_SRS
 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 extern uschar *srs_db_address;         /* SRS db address */
 #ifdef EXPERIMENTAL_SRS
 extern uschar *srs_config;             /* SRS config secret:max age:hash length:use timestamp:use hash */
 extern uschar *srs_db_address;         /* SRS db address */


@@ -878,6 +918,7 @@ extern BOOL    suppress_local_fixups_default; /* former is reset to this; overri
 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 extern int     syslog_facility;        /* As defined by Syslog.h */
 extern BOOL    synchronous_delivery;   /* TRUE if -odi is set */
 extern BOOL    syslog_duplication;     /* FALSE => no duplicate logging */
 extern int     syslog_facility;        /* As defined by Syslog.h */

+extern BOOL    syslog_pid;             /* TRUE if PID on syslogs */

 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 extern uschar *system_filter;          /* Name of system filter file */
 extern uschar *syslog_processname;     /* 'ident' param to openlog() */
 extern BOOL    syslog_timestamp;       /* TRUE if time on syslogs */
 extern uschar *system_filter;          /* Name of system filter file */


@@ -893,7 +934,13 @@ extern uid_t   system_filter_uid;      /* Uid for running system filter */
 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 extern BOOL    system_filtering;       /* TRUE when running system filter */
 
 extern BOOL    system_filter_uid_set;  /* TRUE if uid set */
 extern BOOL    system_filtering;       /* TRUE when running system filter */
 

+extern BOOL    tcp_fastopen_ok;               /* appears to be supported by kernel */
+extern blob    tcp_fastopen_nodata;    /* for zero-data TFO connect requests */
+extern BOOL    tcp_in_fastopen;               /* conn usefully used fastopen */
+extern BOOL    tcp_in_fastopen_logged; /* one-time logging */

 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */
 extern BOOL    tcp_nodelay;            /* Controls TCP_NODELAY on daemon */

+extern int     tcp_out_fastopen;       /* 0: no  1: conn used  2: useful */
+extern BOOL    tcp_out_fastopen_logged; /* one-time logging */

 #ifdef USE_TCP_WRAPPERS
 extern uschar *tcp_wrappers_daemon_name; /* tcpwrappers daemon lookup name */
 #endif
 #ifdef USE_TCP_WRAPPERS
 extern uschar *tcp_wrappers_daemon_name; /* tcpwrappers daemon lookup name */
 #endif