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Индекс форумов
Составление сообщения

Исходное сообщение
"sendmail. странные перебои в работе"
Отправлено АрхангелГавриил, 07-Ноя-05 17:15 
sendmail.cf целиком

#
# Copyright (c) 1998-2001 Sendmail, Inc. and its suppliers.
# All rights reserved.
# Copyright (c) 1983, 1995 Eric P. Allman.  All rights reserved.
# Copyright (c) 1988, 1993
# The Regents of the University of California.  All rights reserved.
#
# By using this file, you agree to the terms and conditions set
# forth in the LICENSE file which can be found at the top level of
# the sendmail distribution.
#
# $FreeBSD: src/contrib/sendmail/cf/m4/cfhead.m4,v 1.3.6.5 2002/03/25 21:24:19 gshapiro Exp $
#

######################################################################
######################################################################
#####
#####   SENDMAIL CONFIGURATION FILE
#####
##### built by root@builder.freebsdmall.com on Tue Jun 11 04:15:20 GMT 2002
##### in /usr/src/etc/sendmail
##### using /usr/src/etc/sendmail/../../contrib/sendmail/cf/ as configuration include directory
#####
######################################################################
#####
##### DO NOT EDIT THIS FILE!  Only edit the source .mc file.
#####
######################################################################
######################################################################

#####  $Id: cfhead.m4,v 8.107 2001/07/22 03:25:37 ca Exp $  #####
#####  $Id: cf.m4,v 8.32 1999/02/07 07:26:14 gshapiro Exp $  #####

#####  $FreeBSD: src/etc/sendmail/freebsd.mc,v 1.10.2.16 2002/05/22 16:39:14 gshapiro Exp $  #####

#####  $Id: freebsd4.m4,v 1.1 2001/03/21 22:44:58 ca Exp $  #####


#####  $Id: generic.m4,v 8.15 1999/04/04 00:51:09 ca Exp $  #####

#####  $Id: redirect.m4,v 8.15 1999/08/06 01:47:36 gshapiro Exp $  #####

#####  $Id: use_cw_file.m4,v 8.11 2001/08/26 20:58:57 gshapiro Exp $  #####


#####  $Id: access_db.m4,v 8.24 2002/03/06 21:50:25 ca Exp $  #####


#####  $Id: blacklist_recipients.m4,v 8.13 1999/04/02 02:25:13 gshapiro Exp $  #####


#####  $Id: local_lmtp.m4,v 8.16 2000/08/18 18:58:45 ca Exp $  #####


#####  $Id: mailertable.m4,v 8.23 2001/03/16 00:51:26 gshapiro Exp $  #####


#####  $Id: virtusertable.m4,v 8.21 2001/03/16 00:51:26 gshapiro Exp $  #####

#####  $Id: proto.m4,v 8.639 2002/04/02 23:42:42 gshapiro Exp $  #####

# level 10 config file format
V10/Berkeley

# override file safeties - setting this option compromises system security,
# addressing the actual file configuration problem is preferred
# need to set this before any file actions are encountered in the cf file
#O DontBlameSendmail=safe

# default LDAP map specification
# need to set this now before any LDAP maps are defined
#O LDAPDefaultSpec=-h localhost

##################
#   local info   #
##################

# my LDAP cluster
# need to set this before any LDAP lookups are done (including classes)
#D{sendmailMTACluster}$m

Cwpallant
# file containing names of hosts for which we receive email
Fw-o /etc/mail/local-host-names

# my official domain name
# ... define this only if sendmail cannot automatically determine your domain
#Dj$w.Foo.COM

CP.

# "Smart" relay host (may be null)
DS


# operators that cannot be in local usernames (i.e., network indicators)
CO @ % !

# a class with just dot (for identifying canonical names)
C..

# a class with just a left bracket (for identifying domain literals)
C[[

# access_db acceptance class
C{Accept}OK RELAY


# Resolve map (to check if a host exists in check_mail)
Kresolve host -a<OKR> -T<TEMP>
C{ResOk}OKR


# Hosts for which relaying is permitted ($=R)
FR-o /etc/mail/relay-domains

# arithmetic map
Karith arith
# macro storage map
Kmacro macro
# possible values for TLS_connection in access map
C{tls}VERIFY ENCR

# dequoting map
Kdequote dequote

# class E: names that should be exposed as from this host, even if we masquerade
# class L: names that should be delivered locally, even if we have a relay
# class M: domains that should be converted to $M
# class N: domains that should not be converted to $M
#CL root
C{E}root

# my name for error messages
DnMAILER-DAEMON


CPREDIRECT

# Access list database (for spam stomping)
Kaccess hash -o -T<TMPF> /etc/mail/access

# Mailer table (overriding domains)
Kmailertable hash -o /etc/mail/mailertable

# Virtual user table (maps incoming users)
Kvirtuser hash -o /etc/mail/virtusertable

# Configuration version number
DZ8.12.3


###############
#   Options   #
###############

# strip message body to 7 bits on input?
O SevenBitInput=False

# 8-bit data handling
#O EightBitMode=pass8

# wait for alias file rebuild (default units: minutes)
O AliasWait=10

# location of alias file
O AliasFile=/etc/mail/aliases

# minimum number of free blocks on filesystem
O MinFreeBlocks=100

# maximum message size
#O MaxMessageSize=1000000

# substitution for space (blank) characters
O BlankSub=.

# avoid connecting to "expensive" mailers on initial submission?
O HoldExpensive=False

# checkpoint queue runs after every N successful deliveries
#O CheckpointInterval=10

# default delivery mode
O DeliveryMode=background

# error message header/file
#O ErrorHeader=/etc/mail/error-header

# error mode
#O ErrorMode=print

# save Unix-style "From_" lines at top of header?
#O SaveFromLine=False

# queue file mode (qf files)
#O QueueFileMode=0600

# temporary file mode
O TempFileMode=0600

# match recipients against GECOS field?
#O MatchGECOS=False

# maximum hop count
#O MaxHopCount=25

# location of help file
O HelpFile=/etc/mail/helpfile

# ignore dots as terminators in incoming messages?
#O IgnoreDots=False

# name resolver options
O ResolverOptions=WorkAroundBrokenAAAA

# deliver MIME-encapsulated error messages?
O SendMimeErrors=True

# Forward file search path
O ForwardPath=$z/.forward.$w+$h:$z/.forward+$h:$z/.forward.$w:$z/.forward

# open connection cache size
O ConnectionCacheSize=2

# open connection cache timeout
O ConnectionCacheTimeout=5m

# persistent host status directory
#O HostStatusDirectory=.hoststat

# single thread deliveries (requires HostStatusDirectory)?
#O SingleThreadDelivery=False

# use Errors-To: header?
O UseErrorsTo=False

# log level
O LogLevel=1

# send to me too, even in an alias expansion?
#O MeToo=True

# verify RHS in newaliases?
O CheckAliases=False

# default messages to old style headers if no special punctuation?
O OldStyleHeaders=True

# SMTP daemon options
O DaemonPortOptions=Name=MTA
O DaemonPortOptions=Port=587, Name=MSA, M=E

# SMTP client options
#O ClientPortOptions=Family=inet, Address=0.0.0.0

# Modifiers to define {daemon_flags} for direct submissions
#O DirectSubmissionModifiers

# Use as mail submission program? See sendmail/SECURITY
#O UseMSP

# privacy flags
O PrivacyOptions=authwarnings,noexpn,novrfy

# who (if anyone) should get extra copies of error messages
#O PostmasterCopy=Postmaster

# slope of queue-only function
#O QueueFactor=600000

# limit on number of concurrent queue runners
#O MaxQueueChildren

# maximum number of queue-runners per queue-grouping with multiple queues
#O MaxRunnersPerQueue=1

# priority of queue runners (nice(3))
#O NiceQueueRun

# shall we sort the queue by hostname first?
#O QueueSortOrder=priority

# minimum time in queue before retry
#O MinQueueAge=30m

# how many jobs can you process in the queue?
#O MaxQueueRunSize=10000

# perform initial split of envelope without checking MX records
#O FastSplit=1

# queue directory
O QueueDirectory=/var/spool/mqueue

# key for shared memory; 0 to turn off
#O SharedMemoryKey=0

# timeouts (many of these)
#O Timeout.initial=5m
#O Timeout.connect=5m
#O Timeout.aconnect=0s
#O Timeout.iconnect=5m
#O Timeout.helo=5m
#O Timeout.mail=10m
#O Timeout.rcpt=1h
#O Timeout.datainit=5m
#O Timeout.datablock=1h
#O Timeout.datafinal=1h
#O Timeout.rset=5m
#O Timeout.quit=2m
#O Timeout.misc=2m
#O Timeout.command=1h
#O Timeout.ident=5s
#O Timeout.fileopen=60s
#O Timeout.control=2m
O Timeout.queuereturn=5d
#O Timeout.queuereturn.normal=5d
#O Timeout.queuereturn.urgent=2d
#O Timeout.queuereturn.non-urgent=7d
O Timeout.queuewarn=4h
#O Timeout.queuewarn.normal=4h
#O Timeout.queuewarn.urgent=1h
#O Timeout.queuewarn.non-urgent=12h
#O Timeout.hoststatus=30m
#O Timeout.resolver.retrans=5s
#O Timeout.resolver.retrans.first=5s
#O Timeout.resolver.retrans.normal=5s
#O Timeout.resolver.retry=4
#O Timeout.resolver.retry.first=4
#O Timeout.resolver.retry.normal=4
#O Timeout.lhlo=2m
#O Timeout.auth=10m
#O Timeout.starttls=1h

# time for DeliverBy; extension disabled if less than 0
#O DeliverByMin=0

# should we not prune routes in route-addr syntax addresses?
#O DontPruneRoutes=False

# queue up everything before forking?
O SuperSafe=True

# status file
O StatusFile=/var/log/sendmail.st

# time zone handling:
#  if undefined, use system default
#  if defined but null, use TZ envariable passed in
#  if defined and non-null, use that info
#O TimeZoneSpec=

# default UID (can be username or userid:groupid)
#O DefaultUser=mailnull

# list of locations of user database file (null means no lookup)
#O UserDatabaseSpec=/etc/mail/userdb

# fallback MX host
#O FallbackMXhost=fall.back.host.net

# if we are the best MX host for a site, try it directly instead of config err
#O TryNullMXList=False

# load average at which we just queue messages
#O QueueLA=8

# load average at which we refuse connections
#O RefuseLA=12

# load average at which we delay connections; 0 means no limit
#O DelayLA=0

# maximum number of children we allow at one time
#O MaxDaemonChildren=12

# maximum number of new connections per second
#O ConnectionRateThrottle=0

# work recipient factor
#O RecipientFactor=30000

# deliver each queued job in a separate process?
#O ForkEachJob=False

# work class factor
#O ClassFactor=1800

# work time factor
#O RetryFactor=90000

# default character set
#O DefaultCharSet=iso-8859-1

# service switch file (name hardwired on Solaris, Ultrix, OSF/1, others)
#O ServiceSwitchFile=/etc/mail/service.switch

# hosts file (normally /etc/hosts)
#O HostsFile=/etc/hosts

# dialup line delay on connection failure
#O DialDelay=10s

# action to take if there are no recipients in the message
O NoRecipientAction=add-to-undisclosed

# chrooted environment for writing to files
#O SafeFileEnvironment=/arch

# are colons OK in addresses?
#O ColonOkInAddr=True

# shall I avoid expanding CNAMEs (violates protocols)?
#O DontExpandCnames=False

# SMTP initial login message (old $e macro)
O SmtpGreetingMessage=$j Sendmail $v/$Z; $b

# UNIX initial From header format (old $l macro)
O UnixFromLine=From $g $d

# From: lines that have embedded newlines are unwrapped onto one line
#O SingleLineFromHeader=False

# Allow HELO SMTP command that does not include a host name
#O AllowBogusHELO=False

# Characters to be quoted in a full name phrase (@,;:\()[] are automatic)
#O MustQuoteChars=.

# delimiter (operator) characters (old $o macro)
O OperatorChars=.:%@!^/[]+

# shall I avoid calling initgroups(3) because of high NIS costs?
#O DontInitGroups=False

# are group-writable :include: and .forward files (un)trustworthy?
# True (the default) means they are not trustworthy.
#O UnsafeGroupWrites=True


# where do errors that occur when sending errors get sent?
#O DoubleBounceAddress=postmaster

# where to save bounces if all else fails
#O DeadLetterDrop=/var/tmp/dead.letter

# what user id do we assume for the majority of the processing?
#O RunAsUser=sendmail

# maximum number of recipients per SMTP envelope
#O MaxRecipientsPerMessage=100

# limit the rate recipients per SMTP envelope are accepted
# once the threshold number of recipients have been rejected
#O BadRcptThrottle=20

# shall we get local names from our installed interfaces?
#O DontProbeInterfaces=False

# Return-Receipt-To: header implies DSN request
#O RrtImpliesDsn=False

# override connection address (for testing)
#O ConnectOnlyTo=0.0.0.0

# Trusted user for file ownership and starting the daemon
#O TrustedUser=root

# Control socket for daemon management
#O ControlSocketName=/var/spool/mqueue/.control

# Maximum MIME header length to protect MUAs
O MaxMimeHeaderLength=256/128

# Maximum length of the sum of all headers
O MaxHeadersLength=32768

# Maximum depth of alias recursion
#O MaxAliasRecursion=10

# location of pid file
#O PidFile=/var/run/sendmail.pid

# Prefix string for the process title shown on 'ps' listings
#O ProcessTitlePrefix=prefix

# Data file (df) memory-buffer file maximum size
#O DataFileBufferSize=4096

# Transcript file (xf) memory-buffer file maximum size
#O XscriptFileBufferSize=4096

# lookup type to find information about local mailboxes
#O MailboxDatabase=pw

# list of authentication mechanisms
#O AuthMechanisms=EXTERNAL GSSAPI KERBEROS_V4 DIGEST-MD5 CRAM-MD5

# default authentication information for outgoing connections
#O DefaultAuthInfo=/etc/mail/default-auth-info

# SMTP AUTH flags
#O AuthOptions

# SMTP AUTH maximum encryption strength
#O AuthMaxBits

# SMTP STARTTLS server options
#O TLSSrvOptions

# Input mail filters
#O InputMailFilters

# CA directory
#O CACERTPath
# CA file
#O CACERTFile
# Server Cert
#O ServerCertFile
# Server private key
#O ServerKeyFile
# Client Cert
#O ClientCertFile
# Client private key
#O ClientKeyFile
# DHParameters (only required if DSA/DH is used)
#O DHParameters
# Random data source (required for systems without /dev/urandom under OpenSSL)
#O RandFile

############################
# QUEUE GROUP DEFINITIONS  #
############################


###########################
#   Message precedences   #
###########################

Pfirst-class=0
Pspecial-delivery=100
Plist=-30
Pbulk=-60
Pjunk=-100

#####################
#   Trusted users   #
#####################

# this is equivalent to setting class "t"
#Ft/etc/mail/trusted-users
Troot
Tdaemon
Tuucp

#########################
#   Format of headers   #
#########################

H?P?Return-Path: <$g>
HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
  $.$?{auth_type}(authenticated$?{auth_ssf} bits=${auth_ssf}$.)
  $.by $j ($v/$Z)$?r with $r$. id $i$?{tls_version}
  (version=${tls_version} cipher=${cipher} bits=${cipher_bits} verify=${verify})$.$?u
  for $u; $|;
  $.$b$?g
  (envelope-from $g)$.
H?D?Resent-Date: $a
H?D?Date: $a
H?F?Resent-From: $?x$x <$g>$|$g$.
H?F?From: $?x$x <$g>$|$g$.
H?x?Full-Name: $x
# HPosted-Date: $a
# H?l?Received-Date: $b
H?M?Resent-Message-Id: <$t.$i@$j>
H?M?Message-Id: <$t.$i@$j>

#
######################################################################
######################################################################
#####
#####     REWRITING RULES
#####
######################################################################
######################################################################

############################################
###  Ruleset 3 -- Name Canonicalization  ###
############################################
Scanonify=3

# handle null input (translate to <@> special case)
R$@     $@ <@>

# strip group: syntax (not inside angle brackets!) and trailing semicolon
R$*     $: $1 <@>     mark addresses
R$* < $* > $* <@> $: $1 < $2 > $3     unmark <addr>
R@ $* <@>   $: @ $1       unmark @host:...
R$* [ IPv6 : $+ ] <@> $: $1 [ IPv6 : $2 ]   unmark IPv6 addr
R$* :: $* <@>   $: $1 :: $2     unmark node::addr
R:include: $* <@> $: :include: $1     unmark :include:...
R$* : $* [ $* ]   $: $1 : $2 [ $3 ] <@>   remark if leading colon
R$* : $* <@>    $: $2       strip colon if marked
R$* <@>     $: $1       unmark
R$* ;        $1       strip trailing semi
R$* < $+ :; > $*  $@ $2 :; <@>      catch <list:;>
R$* < $* ; >       $1 < $2 >      bogus bracketed semi

# null input now results from list:; syntax
R$@     $@ :; <@>

# strip angle brackets -- note RFC733 heuristic to get innermost item
R$*     $: < $1 >     housekeeping <>
R$+ < $* >       < $2 >     strip excess on left
R< $* > $+       < $1 >     strip excess on right
R<>     $@ < @ >      MAIL FROM:<> case
R< $+ >     $: $1       remove housekeeping <>

# strip route address <@a,@b,@c:user@d> -> <user@d>
R@ $+ , $+    $2
R@ [ $* ] : $+    $2
R@ $+ : $+    $2

# find focus for list syntax
R $+ : $* ; @ $+  $@ $>Canonify2 $1 : $2 ; < @ $3 > list syntax
R $+ : $* ;   $@ $1 : $2;     list syntax

# find focus for @ syntax addresses
R$+ @ $+    $: $1 < @ $2 >      focus on domain
R$+ < $+ @ $+ >   $1 $2 < @ $3 >      move gaze right
R$+ < @ $+ >    $@ $>Canonify2 $1 < @ $2 >  already canonical


# convert old-style addresses to a domain-based address
R$- ! $+    $@ $>Canonify2 $2 < @ $1 .UUCP >  resolve uucp names
R$+ . $- ! $+   $@ $>Canonify2 $3 < @ $1 . $2 >   domain uucps
R$+ ! $+    $@ $>Canonify2 $2 < @ $1 .UUCP >  uucp subdomains

# if we have % signs, take the rightmost one
R$* % $*    $1 @ $2       First make them all @s.
R$* @ $* @ $*   $1 % $2 @ $3      Undo all but the last.
R$* @ $*    $@ $>Canonify2 $1 < @ $2 >  Insert < > and finish

# else we must be a local name
R$*     $@ $>Canonify2 $1


################################################
###  Ruleset 96 -- bottom half of ruleset 3  ###
################################################

SCanonify2=96

# handle special cases for local names
R$* < @ localhost > $*    $: $1 < @ $j . > $2   no domain at all
R$* < @ localhost . $m > $* $: $1 < @ $j . > $2   local domain
R$* < @ localhost . UUCP > $* $: $1 < @ $j . > $2   .UUCP domain

# check for IPv4/IPv6 domain literal
R$* < @ [ $+ ] > $*   $: $1 < @@ [ $2 ] > $3    mark [addr]
R$* < @@ $=w > $*   $: $1 < @ $j . > $3   self-literal
R$* < @@ $+ > $*    $@ $1 < @ $2 > $3   canon IP addr

# if really UUCP, handle it immediately

# try UUCP traffic as a local address
R$* < @ $+ . UUCP > $*    $: $1 < @ $[ $2 $] . UUCP . > $3
R$* < @ $+ . . UUCP . > $*  $@ $1 < @ $2 . > $3

# hostnames ending in class P are always canonical
R$* < @ $* $=P > $*   $: $1 < @ $2 $3 . > $4
R$* < @ $* $~P > $*   $: $&{daemon_flags} $| $1 < @ $2 $3 > $4
R$* CC $* $| $* < @ $+.$+ > $*  $: $3 < @ $4.$5 . > $6
R$* CC $* $| $*     $: $3
# pass to name server to make hostname canonical
R$* $| $* < @ $* > $*   $: $2 < @ $[ $3 $] > $4
R$* $| $*     $: $2

# local host aliases and pseudo-domains are always canonical
R$* < @ $=w > $*    $: $1 < @ $2 . > $3
R$* < @ $=M > $*    $: $1 < @ $2 . > $3
R$* < @ $={VirtHost} > $*   $: $1 < @ $2 . > $3
R$* < @ $* . . > $*   $1 < @ $2 . > $3


##################################################
###  Ruleset 4 -- Final Output Post-rewriting  ###
##################################################
Sfinal=4

R$+ :; <@>    $@ $1 :       handle <list:;>
R$* <@>     $@        handle <> and list:;

# strip trailing dot off possibly canonical name
R$* < @ $+ . > $* $1 < @ $2 > $3

# eliminate internal code
R$* < @ *LOCAL* > $*  $1 < @ $j > $2

# externalize local domain info
R$* < $+ > $*   $1 $2 $3      defocus
R@ $+ : @ $+ : $+ @ $1 , @ $2 : $3    <route-addr> canonical
R@ $*     $@ @ $1       ... and exit

# UUCP must always be presented in old form
R$+ @ $- . UUCP   $2!$1       u@h.UUCP => h!u

# delete duplicate local names
R$+ % $=w @ $=w   $1 @ $2       u%host@host => u@host

##############################################################
###   Ruleset 97 -- recanonicalize and call ruleset zero   ###
###      (used for recursive calls)      ###
##############################################################

SRecurse=97
R$*     $: $>canonify $1
R$*     $@ $>parse $1


######################################
###   Ruleset 0 -- Parse Address   ###
######################################

Sparse=0

R$*     $: $>Parse0 $1    initial parsing
R<@>      $#local $: <@>    special case error msgs
R$*     $: $>ParseLocal $1  handle local hacks
R$*     $: $>Parse1 $1    final parsing

#
#  Parse0 -- do initial syntax checking and eliminate local addresses.
# This should either return with the (possibly modified) input
# or return with a #error mailer.  It should not return with a
# #mailer other than the #error mailer.
#

SParse0
R<@>      $@ <@>      special case error msgs
R$* : $* ; <@>    $#error $@ 5.1.3 $: "553 List:; syntax illegal for recipient addresses"
R@ <@ $* >    < @ $1 >    catch "@@host" bogosity
R<@ $+>     $#error $@ 5.1.3 $: "553 User address required"
R$+ <@>     $#error $@ 5.1.3 $: "553 Hostname required"
R$*     $: <> $1
R<> $* < @ [ $* ] : $+ > $* $1 < @ [ $2 ] : $3 > $4
R<> $* < @ [ $* ] , $+ > $* $1 < @ [ $2 ] , $3 > $4
R<> $* < @ [ $* ] $+ > $* $#error $@ 5.1.2 $: "553 Invalid address"
R<> $* < @ [ $+ ] > $*    $1 < @ [ $2 ] > $3
R<> $* <$* : $* > $*  $#error $@ 5.1.3 $: "553 Colon illegal in host name part"
R<> $*      $1
R$* < @ . $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
R$* < @ $* .. $* > $* $#error $@ 5.1.2 $: "553 Invalid host name"
R$* < @ $* @ > $* $#error $@ 5.1.2 $: "553 Invalid route address"
R$* @ $* < @ $* > $*  $#error $@ 5.1.3 $: "553 Invalid route address"
R$* , $~O $*    $#error $@ 5.1.3 $: "553 Invalid route address"


# now delete the local info -- note $=O to find characters that cause forwarding
R$* < @ > $*    $@ $>Parse0 $>canonify $1 user@ => user
R< @ $=w . > : $* $@ $>Parse0 $>canonify $2 @here:... -> ...
R$- < @ $=w . >   $: $(dequote $1 $) < @ $2 . > dequote "foo"@here
R< @ $+ >   $#error $@ 5.1.3 $: "553 User address required"
R$* $=O $* < @ $=w . >  $@ $>Parse0 $>canonify $1 $2 $3 ...@here -> ...
R$-       $: $(dequote $1 $) < @ *LOCAL* >  dequote "foo"
R< @ *LOCAL* >    $#error $@ 5.1.3 $: "553 User address required"
R$* $=O $* < @ *LOCAL* >
      $@ $>Parse0 $>canonify $1 $2 $3 ...@*LOCAL* -> ...
R$* < @ *LOCAL* > $: $1

#
#  Parse1 -- the bottom half of ruleset 0.
#

SParse1

# handle numeric address spec
R$* < @ [ $+ ] > $* $: $>ParseLocal $1 < @ [ $2 ] > $3  numeric internet spec
R$* < @ [ $+ ] > $* $1 < @ [ $2 ] : $S > $3   Add smart host to path
R$* < @ [ $+ ] : > $*   $#esmtp $@ [$2] $: $1 < @ [$2] > $3 no smarthost: send
R$* < @ [ $+ ] : $- : $*> $*  $#$3 $@ $4 $: $1 < @ [$2] > $5  smarthost with mailer
R$* < @ [ $+ ] : $+ > $*  $#esmtp $@ $3 $: $1 < @ [$2] > $4 smarthost without mailer

# handle virtual users
R$+     $: <!> $1   Mark for lookup
R<!> $+ < @ $={VirtHost} . >  $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
R<!> $+ < @ $=w . >   $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
R<@> $+ + $+ < @ $* . >
      $: < $(virtuser $1 + + @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ + $* < @ $* . >
      $: < $(virtuser $1 + * @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ + $* < @ $* . >
      $: < $(virtuser $1 @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ + $+ < @ $+ . > $: < $(virtuser + + @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ + $* < @ $+ . > $: < $(virtuser + * @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ + $* < @ $+ . > $: < $(virtuser @ $3 $@ $1 $@ $2 $@ +$2 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ < @ $+ . >  $: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
R<@> $+     $: $1
R<!> $+     $: $1
R< error : $-.$-.$- : $+ > $*   $#error $@ $1.$2.$3 $: $4
R< error : $- $+ > $*   $#error $@ $(dequote $1 $) $: $2
R< $+ > $+ < @ $+ > $: $>Recurse $1

# short circuit local delivery so forwarded email works


R$=L < @ $=w . >  $#local $: @ $1     special local names
R$+ < @ $=w . >   $#local $: $1     regular local name

# not local -- try mailer table lookup
R$* <@ $+ > $*    $: < $2 > $1 < @ $2 > $3  extract host name
R< $+ . > $*    $: < $1 > $2      strip trailing dot
R< $+ > $*    $: < $(mailertable $1 $) > $2 lookup
R< $~[ : $* > $*  $>MailerToTriple < $1 : $2 > $3   check -- resolved?
R< $+ > $*    $: $>Mailertable <$1> $2    try domain

# resolve remotely connected UUCP links (if any)

# resolve fake top level domains by forwarding to other hosts

# pass names that still have a host to a smarthost (if defined)
R$* < @ $* > $*   $: $>MailerToTriple < $S > $1 < @ $2 > $3 glue on smarthost name

# deal with other remote names
R$* < @$* > $*    $#esmtp $@ $2 $: $1 < @ $2 > $3 user@host.domain

# handle locally delivered names
R$=L      $#local $: @ $1   special local names
R$+     $#local $: $1     regular local names

###########################################################################
###   Ruleset 5 -- special rewriting after aliases have been expanded   ###
###########################################################################

SLocal_localaddr
Slocaladdr=5
R$+     $: $1 $| $>"Local_localaddr" $1
R$+ $| $#ok   $@ $1     no change
R$+ $| $#$*   $#$2
R$+ $| $*   $: $1


# deal with plussed users so aliases work nicely
R$+ + *     $#local $@ $&h $: $1
R$+ + $*    $#local $@ + $2 $: $1 + *

# prepend an empty "forward host" on the front
R$+     $: <> $1

R< > $+     $: < > < $1 <> $&h >    nope, restore +detail

R< > < $+ <> + $* > $: < > < $1 + $2 >    check whether +detail
R< > < $+ <> $* > $: < > < $1 >     else discard
R< > < $+ + $* > $*    < > < $1 > + $2 $3   find the user part
R< > < $+ > + $*  $#local $@ $2 $: @ $1   strip the extra +
R< > < $+ >   $@ $1       no +detail
R$+     $: $1 <> $&h      add +detail back in

R$+ <> + $*   $: $1 + $2      check whether +detail
R$+ <> $*   $: $1       else discard
R< local : $* > $*  $: $>MailerToTriple < local : $1 > $2 no host extension
R< error : $* > $*  $: $>MailerToTriple < error : $1 > $2 no host extension

R< $~[ : $+ > $+  $: $>MailerToTriple < $1 : $2 > $3 < @ $2 >

R< $+ > $+    $@ $>MailerToTriple < $1 > $2 < @ $1 >


###################################################################
###  Ruleset 90 -- try domain part of mailertable entry   ###
###################################################################

SMailertable=90
R$* <$- . $+ > $* $: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
R$* <$~[ : $* > $*  $>MailerToTriple < $2 : $3 > $4   check -- resolved?
R$* < . $+ > $*   $@ $>Mailertable $1 . <$2> $3   no -- strip & try again
R$* < $* > $*   $: < $(mailertable . $@ $1$2 $) > $3  try "."
R< $~[ : $* > $*  $>MailerToTriple < $1 : $2 > $3   "." found?
R< $* > $*    $@ $2       no mailertable match

###################################################################
###  Ruleset 95 -- canonify mailer:[user@]host syntax to triple ###
###################################################################

SMailerToTriple=95
R< > $*       $@ $1     strip off null relay
R< error : $-.$-.$- : $+ > $*   $#error $@ $1.$2.$3 $: $4
R< error : $- $+ > $*   $#error $@ $(dequote $1 $) $: $2
R< local : $* > $*    $>CanonLocal < $1 > $2
R< $~[ : $+ @ $+ > $*<$*>$* $# $1 $@ $3 $: $2<@$3>  use literal user
R< $~[ : $+ > $*    $# $1 $@ $2 $: $3 try qualified mailer
R< $=w > $*     $@ $2     delete local host
R< $+ > $*      $#relay $@ $1 $: $2 use unqualified mailer

###################################################################
###  Ruleset CanonLocal -- canonify local: syntax   ###
###################################################################

SCanonLocal
# strip local host from routed addresses
R< $* > < @ $+ > : $+   $@ $>Recurse $3
R< $* > $+ $=O $+ < @ $+ >  $@ $>Recurse $2 $3 $4

# strip trailing dot from any host name that may appear
R< $* > $* < @ $* . >   $: < $1 > $2 < @ $3 >

# handle local: syntax -- use old user, either with or without host
R< > $* < @ $* > $*   $#local $@ $1@$2 $: $1
R< > $+       $#local $@ $1    $: $1

# handle local:user@host syntax -- ignore host part
R< $+ @ $+ > $* < @ $* >  $: < $1 > $3 < @ $4 >

# handle local:user syntax
R< $+ > $* <@ $* > $*   $#local $@ $2@$3 $: $1
R< $+ > $*      $#local $@ $2    $: $1

###################################################################
###  Ruleset 93 -- convert header names to masqueraded form ###
###################################################################

SMasqHdr=93


# do not masquerade anything in class N
R$* < @ $* $=N . >  $@ $1 < @ $2 $3 . >

R$* < @ *LOCAL* > $@ $1 < @ $j . >

###################################################################
###  Ruleset 94 -- convert envelope names to masqueraded form ###
###################################################################

SMasqEnv=94
R$* < @ *LOCAL* > $*  $: $1 < @ $j . > $2

###################################################################
###  Ruleset 98 -- local part of ruleset zero (can be null) ###
###################################################################

SParseLocal=98

# addresses sent to foo@host.REDIRECT will give a 551 error code
R$* < @ $+ .REDIRECT. >   $: $1 < @ $2 . REDIRECT . > < ${opMode} >
R$* < @ $+ .REDIRECT. > <i> $: $1 < @ $2 . REDIRECT. >
R$* < @ $+ .REDIRECT. > < $- >  $#error $@ 5.1.1 $: "551 User has moved; please try " <$1@$2>


######################################################################
###  D: LookUpDomain -- search for domain in access database
###
### Parameters:
###   <$1> -- key (domain name)
###   <$2> -- default (what to return if not found in db)
###   <$3> -- mark (must be <(!|+) single-token>)
###     ! does lookup only with tag
###     + does lookup with and without tag
###   <$4> -- passthru (additional data passed unchanged through)
######################################################################

SD
R<$*> <$+> <$- $-> <$*>   $: < $(access $4:$1 $: ? $) > <$1> <$2> <$3 $4> <$5>
R<?> <$+> <$+> <+ $-> <$*>  $: < $(access $1 $: ? $) > <$1> <$2> <+ $3> <$4>
R<?> <[$+.$-]> <$+> <$- $-> <$*>  $@ $>D <[$1]> <$3> <$4 $5> <$6>
R<?> <[$+::$-]> <$+> <$- $-> <$*> $: $>D <[$1]> <$3> <$4 $5> <$6>
R<?> <[$+:$-]> <$+> <$- $-> <$*>  $: $>D <[$1]> <$3> <$4 $5> <$6>
R<?> <$+.$+> <$+> <$- $-> <$*>  $@ $>D <$2> <$3> <$4 $5> <$6>
R<?> <$+> <$+> <$- $-> <$*> $@ <$2> <$5>
R<$* <TMPF>> <$+> <$+> <$- $-> <$*> $@ <<TMPF>> <$6>
R<$*> <$+> <$+> <$- $-> <$*>  $@ <$1> <$6>

######################################################################
###  A: LookUpAddress -- search for host address in access database
###
### Parameters:
###   <$1> -- key (dot quadded host address)
###   <$2> -- default (what to return if not found in db)
###   <$3> -- mark (must be <(!|+) single-token>)
###     ! does lookup only with tag
###     + does lookup with and without tag
###   <$4> -- passthru (additional data passed through)
######################################################################

SA
R<$+> <$+> <$- $-> <$*>   $: < $(access $4:$1 $: ? $) > <$1> <$2> <$3 $4> <$5>
R<?> <$+> <$+> <+ $-> <$*>  $: < $(access $1 $: ? $) > <$1> <$2> <+ $3> <$4>
R<?> <$+::$-> <$+> <$- $-> <$*>   $@ $>A <$1> <$3> <$4 $5> <$6>
R<?> <$+:$-> <$+> <$- $-> <$*>    $@ $>A <$1> <$3> <$4 $5> <$6>
R<?> <$+.$-> <$+> <$- $-> <$*>    $@ $>A <$1> <$3> <$4 $5> <$6>
R<?> <$+> <$+> <$- $-> <$*> $@ <$2> <$5>
R<$* <TMPF>> <$+> <$+> <$- $-> <$*> $@ <<TMPF>> <$6>
R<$*> <$+> <$+> <$- $-> <$*>  $@ <$1> <$6>

######################################################################
###  CanonAddr -- Convert an address into a standard form for
###     relay checking.  Route address syntax is
###     crudely converted into a %-hack address.
###
### Parameters:
###   $1 -- full recipient address
###
### Returns:
###   parsed address, not in source route form
######################################################################

SCanonAddr
R$*     $: $>Parse0 $>canonify $1 make domain canonical


######################################################################
###  ParseRecipient --  Strip off hosts in $=R as well as possibly
###     $* $=m or the access database.
###     Check user portion for host separators.
###
### Parameters:
###   $1 -- full recipient address
###
### Returns:
###   parsed, non-local-relaying address
######################################################################

SParseRecipient
R$*       $: <?> $>CanonAddr $1
R<?> $* < @ $* . >    <?> $1 < @ $2 >     strip trailing dots
R<?> $- < @ $* >    $: <?> $(dequote $1 $) < @ $2 > dequote local part

# if no $=O character, no host in the user portion, we are done
R<?> $* $=O $* < @ $* >   $: <NO> $1 $2 $3 < @ $4>
R<?> $*       $@ $1


R<NO> $* < @ $* $=R >   $: <RELAY> $1 < @ $2 $3 >
R<NO> $* < @ $+ >   $: $>D <$2> <NO> <+ To> <$1 < @ $2 >>
R<$+> <$+>      $: <$1> $2

R<RELAY> $* < @ $* >    $@ $>ParseRecipient $1
R<$+> $*      $@ $2


######################################################################
###  check_relay -- check hostname/address on SMTP startup
######################################################################

SLocal_check_relay
Scheck_relay
R$*     $: $1 $| $>"Local_check_relay" $1
R$* $| $* $| $#$* $#$3
R$* $| $* $| $*   $@ $>"Basic_check_relay" $1 $| $2

SBasic_check_relay
# check for deferred delivery mode
R$*     $: < ${deliveryMode} > $1
R< d > $*   $@ deferred
R< $* > $*    $: $2

R$+ $| $+   $: $>D < $1 > <?> <+ Connect> < $2 >
R<?> <$+>   $: $>A < $1 > <?> <+ Connect> <>  no: another lookup
R<?> <$*>   $: OK       found nothing
R<$={Accept}> <$*>  $@ $1       return value of lookup
R<REJECT> <$*>    $#error $@ 5.7.1 $: "550 Access denied"
R<DISCARD> <$*>   $#discard $: discard
R<ERROR:$-.$-.$-:$+> <$*> $#error $@ $1.$2.$3 $: $4
R<ERROR:$+> <$*>    $#error $: $1
R<$* <TMPF>> <$*>   $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R<$+> <$*>    $#error $: $1

######################################################################
###  check_mail -- check SMTP `MAIL FROM:' command argument
######################################################################

SLocal_check_mail
Scheck_mail
R$*     $: $1 $| $>"Local_check_mail" $1
R$* $| $#$*   $#$2
R$* $| $*   $@ $>"Basic_check_mail" $1

SBasic_check_mail
# check for deferred delivery mode
R$*     $: < ${deliveryMode} > $1
R< d > $*   $@ deferred
R< $* > $*    $: $2

# authenticated?
R$*     $: $1 $| $>"tls_client" $&{verify} $| MAIL
R$* $| $#$+   $#$2
R$* $| $*   $: $1

R<>     $@ <OK>     we MUST accept <> (RFC 1123)
R$+     $: <?> $1
R<?><$+>    $: <@> <$1>
R<?>$+      $: <@> <$1>
R$*     $: $&{daemon_flags} $| $1
R$* f $* $| <@> < $* @ $- > $: < ? $&{client_name} > < $3 @ $4 >
R$* u $* $| <@> < $* >  $: <?> < $3 >
R$* $| $*   $: $2
# handle case of @localhost on address
R<@> < $* @ localhost > $: < ? $&{client_name} > < $1 @ localhost >
R<@> < $* @ [127.0.0.1] >
      $: < ? $&{client_name} > < $1 @ [127.0.0.1] >
R<@> < $* @ localhost.$m >
      $: < ? $&{client_name} > < $1 @ localhost.$m >
R<@> < $* @ localhost.UUCP >
      $: < ? $&{client_name} > < $1 @ localhost.UUCP >
R<@> $*     $: $1     no localhost as domain
R<? $=w> $*   $: $2     local client: ok
R<? $+> <$+>    $#error $@ 5.5.4 $: "553 Real domain name required for sender address"
R<?> $*     $: $1
R$*     $: <?> $>CanonAddr $1   canonify sender address and mark it
R<?> $* < @ $+ . >  <?> $1 < @ $2 >     strip trailing dots
# handle non-DNS hostnames (*.bitnet, *.decnet, *.uucp, etc)
R<?> $* < @ $* $=P >  $: <OK> $1 < @ $2 $3 >
R<?> $* < @ $+ >  $: <? $(resolve $2 $: $2 <PERM> $) > $1 < @ $2 >
R<? $* <$->> $* < @ $+ >
      $: <$2> $3 < @ $4 >

# check sender address: user@address, user@, address
R<$+> $+ < @ $* > $: @<$1> <$2 < @ $3 >> $| <F:$2@$3> <U:$2@> <D:$3>
R<$+> $+    $: @<$1> <$2> $| <U:$2@>
R@ <$+> <$*> $| <$+>  $: <@> <$1> <$2> $| $>SearchList <+ From> $| <$3> <>
R<@> <$+> <$*> $| <$*>  $: <$3> <$1> <$2>   reverse result
# retransform for further use
R<?> <$+> <$*>    $: <$1> $2  no match
R<$+> <$+> <$*>   $: <$1> $3  relevant result, keep it

# handle case of no @domain on address
R<?> $*     $: $&{daemon_flags} $| <?> $1
R$* u $* $| <?> $*  $: <OKR> $3
R$* $| $*   $: $2
R<?> $*     $: < ? $&{client_name} > $1
R<?> $*     $@ <OK>       ...local unqualed ok
R<? $+> $*    $#error $@ 5.5.4 $: "553 Domain name required for sender address " $&f
              ...remote is not
# check results
R<?> $*     $: @ $1   mark address: nothing known about it
R<$={ResOk}> $*   $@ <OKR>  domain ok: stop
R<TEMP> $*    $#error $@ 4.1.8 $: "451 Domain of sender address " $&f " does not resolve"
R<PERM> $*    $#error $@ 5.1.8 $: "553 Domain of sender address " $&f " does not exist"
R<$={Accept}> $*  $# $1   accept from access map
R<DISCARD> $*   $#discard $: discard
R<REJECT> $*    $#error $@ 5.7.1 $: "550 Access denied"
R<ERROR:$-.$-.$-:$+> $*   $#error $@ $1.$2.$3 $: $4
R<ERROR:$+> $*    $#error $: $1
R<<TMPF>> $*    $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R<$+> $*    $#error $: $1   error from access db

######################################################################
###  check_rcpt -- check SMTP `RCPT TO:' command argument
######################################################################

SLocal_check_rcpt
Scheck_rcpt
R$*     $: $1 $| $>"Local_check_rcpt" $1
R$* $| $#$*   $#$2
R$* $| $*   $@ $>"Basic_check_rcpt" $1

SBasic_check_rcpt
# empty address?
R<>     $#error $@ nouser $: "553 User address required"
R$@     $#error $@ nouser $: "553 User address required"
# check for deferred delivery mode
R$*     $: < ${deliveryMode} > $1
R< d > $*   $@ deferred
R< $* > $*    $: $2


######################################################################
R$*     $: $1 $| @ $>"Rcpt_ok" $1
R$* $| @ $#TEMP $+  $: $1 $| T $2
R$* $| @ $#$*   $#$2
R$* $| @ RELAY    $@ RELAY
R$* $| @ $*   $: O $| $>"Relay_ok" $1
R$* $| T $+   $: T $2 $| $>"Relay_ok" $1
R$* $| $#TEMP $+  $#error $2
R$* $| $#$*   $#$2
R$* $| RELAY    $@ RELAY
R T $+ $| $*    $#error $1
# anything else is bogus
R$*     $#error $@ 5.7.1 $: "550 Relaying denied"


######################################################################
### Rcpt_ok: is the recipient ok?
######################################################################
SRcpt_ok
R$*     $: $>ParseRecipient $1    strip relayable hosts

# blacklist local users or any host from receiving mail
R$*     $: <?> $1
R<?> $+ < @ $=w > $: <> <$1 < @ $2 >> $| <F:$1@$2> <U:$1@> <D:$2>
R<?> $+ < @ $* >  $: <> <$1 < @ $2 >> $| <F:$1@$2> <D:$2>
R<?> $+     $: <> <$1> $| <U:$1@>
R<> <$*> $| <$+>  $: <@> <$1> $| $>SearchList <+ To> $| <$2> <>
R<@> <$*> $| <$*> $: <$2> <$1>    reverse result
R<?> <$*>   $: @ $1   mark address as no match
R<$={Accept}> <$*>  $: @ $2   mark address as no match

R<REJECT> $*    $#error $@ 5.2.1 $: "550 Mailbox disabled for this recipient"
R<DISCARD> $*   $#discard $: discard
R<ERROR:$-.$-.$-:$+> $*   $#error $@ $1.$2.$3 $: $4
R<ERROR:$+> $*    $#error $: $1
R<<TMPF>> $*    $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R<$+> $*    $#error $: $1   error from access db
R@ $*     $1    remove mark

# authenticated via TLS?
R$*     $: $1 $| $>RelayTLS client authenticated?
R$* $| $# $+    $# $2     error/ok?
R$* $| $*   $: $1     no

R$*     $: $1 $| $>"Local_Relay_Auth" $&{auth_type}
R$* $| $# $*    $# $2
R$* $| NO   $: $1
R$* $| $*   $: $1 $| $&{auth_type}
R$* $|      $: $1
R$* $| $={TrustAuthMech}  $# RELAY
R$* $| $*   $: $1
# anything terminating locally is ok
R$+ < @ $=w >   $@ RELAY
R$+ < @ $* $=R >  $@ RELAY
R$+ < @ $+ >    $: $>D <$2> <?> <+ To> <$1 < @ $2 >>
R<RELAY> $*   $@ RELAY
R<$* <TMPF>> $*   $#TEMP $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R<$*> <$*>    $: $2

# check for local user (i.e. unqualified address)
R$*     $: <?> $1
R<?> $* < @ $+ >  $: <REMOTE> $1 < @ $2 >
# local user is ok
R<?> $+     $@ RELAY
R<$+> $*    $: $2

######################################################################
### Relay_ok: is the relay/sender ok?
######################################################################
SRelay_ok
# anything originating locally is ok
# check IP address
R$*     $: $&{client_addr}
R$@     $@ RELAY    originated locally
R0      $@ RELAY    originated locally
R$=R $*     $@ RELAY    relayable IP address
R$*     $: $>A <$1> <?> <+ Connect> <$1>
R<RELAY> $*     $@ RELAY    relayable IP address
R<<TMPF>> $*    $#TEMP $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R<$*> <$*>    $: $2
R$*     $: [ $1 ]   put brackets around it...
R$=w      $@ RELAY    ... and see if it is local


# check client name: first: did it resolve?
R$*     $: < $&{client_resolve} >
R<TEMP>     $#TEMP $@ 4.7.1 $: "450 Relaying temporarily denied. Cannot resolve PTR record for " $&{client_addr}
R<FORGED>   $#error $@ 5.7.1 $: "550 Relaying denied. IP name possibly forged " $&{client_name}
R<FAIL>     $#error $@ 5.7.1 $: "550 Relaying denied. IP name lookup failed " $&{client_name}
R$*     $: <@> $&{client_name}
R<@>      $@ RELAY
# pass to name server to make hostname canonical
R<@> $* $=P     $:<?>  $1 $2
R<@> $+     $:<?>  $[ $1 $]
R$* .     $1      strip trailing dots
R<?> $=w    $@ RELAY
R<?> $* $=R     $@ RELAY
R<?> $*     $: $>D <$1> <?> <+ Connect> <$1>
R<RELAY> $*   $@ RELAY
R<$* <TMPF>> $*   $#TEMP $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R<$*> <$*>    $: $2


######################################################################
###  F: LookUpFull -- search for an entry in access database
###
### lookup of full key (which should be an address) and
### variations if +detail exists: +* and without +detail
###
### Parameters:
###   <$1> -- key
###   <$2> -- default (what to return if not found in db)
###   <$3> -- mark (must be <(!|+) single-token>)
###     ! does lookup only with tag
###     + does lookup with and without tag
###   <$4> -- passthru (additional data passed unchanged through)
######################################################################

SF
R<$+> <$*> <$- $-> <$*>   $: <$(access $4:$1 $: ? $)> <$1> <$2> <$3 $4> <$5>
R<?> <$+> <$*> <+ $-> <$*>  $: <$(access $1 $: ? $)> <$1> <$2> <+ $3> <$4>
R<?> <$+ + $* @ $+> <$*> <$- $-> <$*>
      $: <$(access $6:$1+*@$3 $: ? $)> <$1+$2@$3> <$4> <$5 $6> <$7>
R<?> <$+ + $* @ $+> <$*> <+ $-> <$*>
      $: <$(access $1+*@$3 $: ? $)> <$1+$2@$3> <$4> <+ $5> <$6>
R<?> <$+ + $* @ $+> <$*> <$- $-> <$*>
      $: <$(access $6:$1@$3 $: ? $)> <$1+$2@$3> <$4> <$5 $6> <$7>
R<?> <$+ + $* @ $+> <$*> <+ $-> <$*>
      $: <$(access $1@$3 $: ? $)> <$1+$2@$3> <$4> <+ $5> <$6>
R<?> <$+> <$*> <$- $-> <$*> $@ <$2> <$5>
R<$+ <TMPF>> <$*> <$- $-> <$*>  $@ <<TMPF>> <$5>
R<$+> <$*> <$- $-> <$*>   $@ <$1> <$5>

######################################################################
###  E: LookUpExact -- search for an entry in access database
###
### Parameters:
###   <$1> -- key
###   <$2> -- default (what to return if not found in db)
###   <$3> -- mark (must be <(!|+) single-token>)
###     ! does lookup only with tag
###     + does lookup with and without tag
###   <$4> -- passthru (additional data passed unchanged through)
######################################################################

SE
R<$*> <$*> <$- $-> <$*>   $: <$(access $4:$1 $: ? $)> <$1> <$2> <$3 $4> <$5>
R<?> <$+> <$*> <+ $-> <$*>  $: <$(access $1 $: ? $)> <$1> <$2> <+ $3> <$4>
R<?> <$+> <$*> <$- $-> <$*> $@ <$2> <$5>
R<$+ <TMPF>> <$*> <$- $-> <$*>  $@ <<TMPF>> <$5>
R<$+> <$*> <$- $-> <$*>   $@ <$1> <$5>

######################################################################
###  U: LookUpUser -- search for an entry in access database
###
### lookup of key (which should be a local part) and
### variations if +detail exists: +* and without +detail
###
### Parameters:
###   <$1> -- key (user@)
###   <$2> -- default (what to return if not found in db)
###   <$3> -- mark (must be <(!|+) single-token>)
###     ! does lookup only with tag
###     + does lookup with and without tag
###   <$4> -- passthru (additional data passed unchanged through)
######################################################################

SU
R<$+> <$*> <$- $-> <$*>   $: <$(access $4:$1 $: ? $)> <$1> <$2> <$3 $4> <$5>
R<?> <$+> <$*> <+ $-> <$*>  $: <$(access $1 $: ? $)> <$1> <$2> <+ $3> <$4>
R<?> <$+ + $* @> <$*> <$- $-> <$*>
      $: <$(access $5:$1+*@ $: ? $)> <$1+$2@> <$3> <$4 $5> <$6>
R<?> <$+ + $* @> <$*> <+ $-> <$*>
      $: <$(access $1+*@ $: ? $)> <$1+$2@> <$3> <+ $4> <$5>
R<?> <$+ + $* @> <$*> <$- $-> <$*>
      $: <$(access $5:$1@ $: ? $)> <$1+$2@> <$3> <$4 $5> <$6>
R<?> <$+ + $* @> <$*> <+ $-> <$*>
      $: <$(access $1@ $: ? $)> <$1+$2@> <$3> <+ $4> <$5>
R<?> <$+> <$*> <$- $-> <$*> $@ <$2> <$5>
R<$+ <TMPF>> <$*> <$- $-> <$*>  $@ <<TMPF>> <$5>
R<$+> <$*> <$- $-> <$*>   $@ <$1> <$5>

######################################################################
###  SearchList: search a list of items in the access map
### Parameters:
###   <exact tag> $| <mark:address> <mark:address> ... <>
### where "exact" is either "+" or "!":
### <+ TAG> lookup with and w/o tag
### <! TAG> lookup with tag
### possible values for "mark" are:
###   D: recursive host lookup (LookUpDomain)
###   E: exact lookup, no modifications
###   F: full lookup, try user+ext@domain and user@domain
###   U: user lookup, try user+ext and user (input must have trailing @)
### return: <RHS of lookup> or <?> (not found)
######################################################################

# class with valid marks for SearchList
C{src}E F D U
SSearchList
# just call the ruleset with the name of the tag... nice trick...
R<$+> $| <$={src}:$*> <$*>  $: <$1> $| <$4> $| $>$2 <$3> <?> <$1> <>
R<$+> $| <> $| <?> <>   $@ <?>
R<$+> $| <$+> $| <?> <>   $@ $>SearchList <$1> $| <$2>
R<$+> $| <$*> $| <$+> <>  $@ <$3>
R<$+> $| <$+>     $@ <$2>


######################################################################
###  trust_auth: is user trusted to authenticate as someone else?
###
### Parameters:
###   $1: AUTH= parameter from MAIL command
######################################################################

SLocal_trust_auth
Strust_auth
R$*     $: $&{auth_type} $| $1
# required by RFC 2554 section 4.
R$@ $| $*   $#error $@ 5.7.1 $: "550 not authenticated"
R$* $| $&{auth_authen}    $@ identical
R$* $| <$&{auth_authen}>  $@ identical
R$* $| $*   $: $1 $| $>"Local_trust_auth" $1
R$* $| $#$*   $#$2
R$*     $#error $@ 5.7.1 $: "550 " $&{auth_authen} " not allowed to act as " $&{auth_author}

######################################################################
###  Relay_Auth: allow relaying based on authentication?
###
### Parameters:
###   $1: ${auth_type}
######################################################################
SLocal_Relay_Auth

######################################################################
###  srv_features: which features to offer to a client?
### (done in server)
######################################################################
Ssrv_features
R$*   $: $>D <$&{client_name}> <?> <! "Srv_Features"> <>
R<?>$*    $: $>A <$&{client_addr}> <?> <! "Srv_Features"> <>
R<?>$*    $: <$(access "Srv_Features": $: ? $)>
R<?>$*    $@ OK
R<$* <TMPF>>$*  $#temp
R<$+>$*   $# $1

######################################################################
###  try_tls: try to use STARTTLS?
### (done in client)
######################################################################
Stry_tls
R$*   $: $>D <$&{server_name}> <?> <! "Try_TLS"> <>
R<?>$*    $: $>A <$&{server_addr}> <?> <! "Try_TLS"> <>
R<?>$*    $: <$(access "Try_TLS": $: ? $)>
R<?>$*    $@ OK
R<$* <TMPF>>$*  $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R<NO>$*   $#error $@ 5.7.1 $: "550 do not try TLS with " $&{server_name} " ["$&{server_addr}"]"
  
######################################################################
###  tls_rcpt: is connection with server "good" enough?
### (done in client, per recipient)
###
### Parameters:
###   $1: recipient
######################################################################
Stls_rcpt
R$*     $: $(macro {TLS_Name} $@ $&{server_name} $) $1
R$+     $: <?> $>CanonAddr $1
R<?> $+ < @ $+ . >  <?> $1 <@ $2 >
R<?> $+ < @ $+ >  $: $1 <@ $2 > $| <F:$1@$2> <U:$1@> <D:$2> <E:>
R<?> $+     $: $1 $| <U:$1@> <E:>
R$* $| $+ $: $1 $| $>SearchList <! "TLS_Rcpt"> $| $2 <>
R$* $| <?>  $@ OK
R$* $| <$* <TMPF>>  $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R$* $| <$+> $@ $>"TLS_connection" $&{verify} $| <$2>

######################################################################
###  tls_client: is connection with client "good" enough?
### (done in server)
###
### Parameters:
###   ${verify} $| (MAIL|STARTTLS)
######################################################################
Stls_client
R$*   $: $(macro {TLS_Name} $@ $&{server_name} $) $1
R$* $| $* $: $1 $| $>D <$&{client_name}> <?> <! "TLS_Clt"> <>
R$* $| <?>$*  $: $1 $| $>A <$&{client_addr}> <?> <! "TLS_Clt"> <>
R$* $| <?>$*  $: $1 $| <$(access "TLS_Clt": $: ? $)>
R$* $| <$* <TMPF>>  $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R$*   $@ $>"TLS_connection" $1

######################################################################
###  tls_server: is connection with server "good" enough?
### (done in client)
###
### Parameter:
###   ${verify}
######################################################################
Stls_server
R$*   $: $(macro {TLS_Name} $@ $&{server_name} $) $1
R$*   $: $1 $| $>D <$&{server_name}> <?> <! "TLS_Srv"> <>
R$* $| <?>$*  $: $1 $| $>A <$&{server_addr}> <?> <! "TLS_Srv"> <>
R$* $| <?>$*  $: $1 $| <$(access "TLS_Srv": $: ? $)>
R$* $| <$* <TMPF>>  $#error $@ 4.3.0 $: "451 Temporary system failure. Please try again later."
R$*   $@ $>"TLS_connection" $1

######################################################################
###  TLS_connection: is TLS connection "good" enough?
###
### Parameters:
###   ${verify} $| <Requirement> [<>]
###   Requirement: RHS from access map, may be ? for none.
######################################################################
STLS_connection
R$* $| <$*>$*     $: $1 $| <$2>
# create the appropriate error codes
R$* $| <PERM + $={tls} $*>  $: $1 $| <503:5.7.0> <$2 $3>
R$* $| <TEMP + $={tls} $*>  $: $1 $| <403:4.7.0> <$2 $3>
R$* $| <$={tls} $*>   $: $1 $| <403:4.7.0> <$2 $3>
# deal with TLS handshake failures: abort
RSOFTWARE $| <$-:$+> $*   $#error $@ $2 $: $1 " TLS handshake failed."
RSOFTWARE $| $*     $#error $@ 4.7.0 $: "403 TLS handshake failed."
R$* $| <$*> <VERIFY>    $: <$2> <VERIFY> <> $1
R$* $| <$*> <VERIFY + $+> $: <$2> <VERIFY> <$3> $1
R$* $| <$*> <$={tls}:$->$*  $: <$2> <$3:$4> <> $1
R$* $| <$*> <$={tls}:$- + $+>$* $: <$2> <$3:$4> <$5> $1
R$* $| $*     $@ OK
# authentication required: give appropriate error
# other side did authenticate (via STARTTLS)
R<$*><VERIFY> <> OK   $@ OK
R<$*><VERIFY> <$+> OK   $: <$1> <REQ:0> <$2>
R<$*><VERIFY:$-> <$*> OK  $: <$1> <REQ:$2> <$3>
R<$*><ENCR:$-> <$*> $*    $: <$1> <REQ:$2> <$3>
R<$-:$+><VERIFY $*> <$*>  $#error $@ $2 $: $1 " authentication required"
R<$-:$+><VERIFY $*> <$*> FAIL $#error $@ $2 $: $1 " authentication failed"
R<$-:$+><VERIFY $*> <$*> NO $#error $@ $2 $: $1 " not authenticated"
R<$-:$+><VERIFY $*> <$*> NOT  $#error $@ $2 $: $1 " no authentication requested"
R<$-:$+><VERIFY $*> <$*> NONE $#error $@ $2 $: $1 " other side does not support STARTTLS"
R<$-:$+><VERIFY $*> <$*> $+ $#error $@ $2 $: $1 " authentication failure " $4
R<$*><REQ:$-> <$*>    $: <$1> <REQ:$2> <$3> $>max $&{cipher_bits} : $&{auth_ssf}
R<$*><REQ:$-> <$*> $-   $: <$1> <$2:$4> <$3> $(arith l $@ $4 $@ $2 $)
R<$-:$+><$-:$-> <$*> TRUE $#error $@ $2 $: $1 " encryption too weak " $4 " less than " $3
R<$-:$+><$-:$-> <$*> $*   $: <$1:$2 ++ $5>
R<$-:$+ ++ >      $@ OK
R<$-:$+ ++ $+ >     $: <$1:$2> <$3>
R<$-:$+> < $+ ++ $+ >   <$1:$2> <$3> <$4>
R<$-:$+> $+     $@ $>"TLS_req" $3 $| <$1:$2>

######################################################################
###  TLS_req: check additional TLS requirements
###
### Parameters: [<list> <of> <req>] $| <$-:$+>
###   $-: SMTP reply code
###   $+: Enhanced Status Code
######################################################################
STLS_req
R $| $+   $@ OK
R<CN> $* $| <$+>    $: <CN:$&{TLS_Name}> $1 $| <$2>
R<CN:$&{cn_subject}> $* $| <$+>   $@ $>"TLS_req" $1 $| <$2>
R<CN:$+> $* $| <$-:$+>  $#error $@ $4 $: $3 " CN " $&{cn_subject} " does not match " $1
R<CS:$&{cert_subject}> $* $| <$+> $@ $>"TLS_req" $1 $| <$2>
R<CS:$+> $* $| <$-:$+>  $#error $@ $4 $: $3 " CERT Subject " $&{cert_subject} " does not match " $1
R<CI:$&{cert_issuer}> $* $| <$+>  $@ $>"TLS_req" $1 $| <$2>
R<CI:$+> $* $| <$-:$+>  $#error $@ $4 $: $3 " CERT Issuer " $&{cert_issuer} " does not match " $1
ROK     $@ OK

######################################################################
###  max: return the maximum of two values separated by :
###
### Parameters: [$-]:[$-]
######################################################################
Smax
R:    $: 0
R:$-    $: $1
R$-:    $: $1
R$-:$-    $: $(arith l $@ $1 $@ $2 $) : $1 : $2
RTRUE:$-:$- $: $2
R$-:$-:$- $: $2


######################################################################
###  RelayTLS: allow relaying based on TLS authentication
###
### Parameters:
###   none
######################################################################
SRelayTLS
# authenticated?
R$*     $: <?> $&{verify}
R<?> OK     $: OK   authenticated: continue
R<?> $*     $@ NO   not authenticated
R$*     $: $&{cert_issuer}
R$+     $: $(access CERTISSUER:$1 $)
RRELAY      $# RELAY
RSUBJECT    $: <@> $&{cert_subject}
R<@> $+     $: <@> $(access CERTSUBJECT:$1 $)
R<@> RELAY    $# RELAY
R$*     $: NO

######################################################################
###  authinfo: lookup authinfo in the access map
###
### Parameters:
###   $1: {server_name}
###   $2: {server_addr}
######################################################################
Sauthinfo
R$*   $: $1 $| $>D <$&{server_name}> <?> <! AuthInfo> <>
R$* $| <?>$*  $: $1 $| $>A <$&{server_addr}> <?> <! AuthInfo> <>
R$* $| <?>$*  $: $1 $| <$(access AuthInfo: $: ? $)> <>
R$* $| <?>$*  $@ no       no authinfo available
R$* $| <$*> <>  $# $2

#
######################################################################
######################################################################
#####
#####     MAIL FILTER DEFINITIONS
#####
######################################################################
######################################################################

#
######################################################################
######################################################################
#####
#####     MAILER DEFINITIONS
#####
######################################################################
######################################################################


##################################################
###   Local and Program Mailer specification   ###
##################################################

#####  $Id: local.m4,v 8.58 2000/10/26 01:58:29 ca Exp $  #####

#
#  Envelope sender rewriting
#
SEnvFromL
R<@>      $n      errors to mailer-daemon
R@ <@ $*>   $n      temporarily bypass Sun bogosity
R$+     $: $>AddDomain $1 add local domain if needed
R$*     $: $>MasqEnv $1   do masquerading

#
#  Envelope recipient rewriting
#
SEnvToL
R$+ < @ $* >    $: $1     strip host part
R$+ + $*    $: < $&{addr_type} > $1 + $2  mark with addr type
R<e s> $+ + $*    $: $1     remove +detail for sender
R< $* > $+    $: $2     else remove mark

#
#  Header sender rewriting
#
SHdrFromL
R<@>      $n      errors to mailer-daemon
R@ <@ $*>   $n      temporarily bypass Sun bogosity
R$+     $: $>AddDomain $1 add local domain if needed
R$*     $: $>MasqHdr $1   do masquerading

#
#  Header recipient rewriting
#
SHdrToL
R$+     $: $>AddDomain $1 add local domain if needed
R$* < @ *LOCAL* > $*  $: $1 < @ $j . > $2

#
#  Common code to add local domain name (only if always-add-domain)
#
SAddDomain

Mlocal,   P=/usr/libexec/mail.local, F=lsDFMAw5:/|@qPSXfmnz9, S=EnvFromSMTP/HdrFromL, R=EnvToL/HdrToL,
    T=DNS/RFC822/SMTP,
    A=mail.local -l
Mprog,    P=/bin/sh, F=lsDFMoqeu9, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL, D=$z:/,
    T=X-Unix/X-Unix/X-Unix,
    A=sh -c $u

#####################################
###   SMTP Mailer specification   ###
#####################################

#####  $Id: smtp.m4,v 8.64 2001/04/03 01:52:54 gshapiro Exp $  #####

#
#  common sender and masquerading recipient rewriting
#
SMasqSMTP
R$* < @ $* > $*   $@ $1 < @ $2 > $3   already fully qualified
R$+     $@ $1 < @ *LOCAL* >   add local qualification

#
#  convert pseudo-domain addresses to real domain addresses
#
SPseudoToReal

# pass <route-addr>s through
R< @ $+ > $*    $@ < @ $1 > $2      resolve <route-addr>

# output fake domains as user%fake@relay

# do UUCP heuristics; note that these are shared with UUCP mailers
R$+ < @ $+ .UUCP. > $: < $2 ! > $1      convert to UUCP form
R$+ < @ $* > $*   $@ $1 < @ $2 > $3   not UUCP form

# leave these in .UUCP form to avoid further tampering
R< $&h ! > $- ! $+  $@ $2 < @ $1 .UUCP. >
R< $&h ! > $-.$+ ! $+ $@ $3 < @ $1.$2 >
R< $&h ! > $+   $@ $1 < @ $&h .UUCP. >
R< $+ ! > $+    $: $1 ! $2 < @ $Y >   use UUCP_RELAY
R$+ < @ $~[ $* : $+ > $@ $1 < @ $4 >      strip mailer: part
R$+ < @ >   $: $1 < @ *LOCAL* >   if no UUCP_RELAY


#
#  envelope sender rewriting
#
SEnvFromSMTP
R$+     $: $>PseudoToReal $1    sender/recipient common
R$* :; <@>    $@        list:; special case
R$*     $: $>MasqSMTP $1    qualify unqual'ed names
R$+     $: $>MasqEnv $1     do masquerading


#
#  envelope recipient rewriting --
#  also header recipient if not masquerading recipients
#
SEnvToSMTP
R$+     $: $>PseudoToReal $1    sender/recipient common
R$+     $: $>MasqSMTP $1    qualify unqual'ed names
R$* < @ *LOCAL* > $*  $: $1 < @ $j . > $2

#
#  header sender and masquerading header recipient rewriting
#
SHdrFromSMTP
R$+     $: $>PseudoToReal $1    sender/recipient common
R:; <@>     $@        list:; special case

# do special header rewriting
R$* <@> $*    $@ $1 <@> $2      pass null host through
R< @ $* > $*    $@ < @ $1 > $2      pass route-addr through
R$*     $: $>MasqSMTP $1    qualify unqual'ed names
R$+     $: $>MasqHdr $1     do masquerading


#
#  relay mailer header masquerading recipient rewriting
#
SMasqRelay
R$+     $: $>MasqSMTP $1
R$+     $: $>MasqHdr $1

Msmtp,    P=[IPC], F=mDFMuX, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
    T=DNS/RFC822/SMTP,
    A=TCP $h
Mesmtp,   P=[IPC], F=mDFMuXa, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
    T=DNS/RFC822/SMTP,
    A=TCP $h
Msmtp8,   P=[IPC], F=mDFMuX8, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
    T=DNS/RFC822/SMTP,
    A=TCP $h
Mdsmtp,   P=[IPC], F=mDFMuXa%, S=EnvFromSMTP/HdrFromSMTP, R=EnvToSMTP, E=\r\n, L=990,
    T=DNS/RFC822/SMTP,
    A=TCP $h
Mrelay,   P=[IPC], F=mDFMuXa8, S=EnvFromSMTP/HdrFromSMTP, R=MasqSMTP, E=\r\n, L=2040,
    T=DNS/RFC822/SMTP,
    A=TCP $h

 

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