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sendmail.cf
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#
# Copyright (c) 1998 Sendmail, Inc. 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.
#
#
######################################################################
######################################################################
#####
##### SENDMAIL CONFIGURATION FILE
#####
##### built by [email protected] on Thu Feb 17 17:51:20 EST 2000
##### in /usr/src/bs/BUILD/sendmail-8.9.3/cf/cf
##### using ../ as configuration include directory
#####
######################################################################
######################################################################
##### @(#)cfhead.m4 8.23 (Berkeley) 10/6/1998 #####
##### @(#)cf.m4 8.29 (Berkeley) 5/19/1998 #####
##### @(#)linux.m4 8.7 (Berkeley) 5/19/1998 #####
##### @(#)smrsh.m4 8.8 (Berkeley) 5/19/1998 #####
##### @(#)mailertable.m4 8.10 (Berkeley) 10/6/1998 #####
##### @(#)virtusertable.m4 8.8 (Berkeley) 10/6/1998 #####
##### @(#)redirect.m4 8.10 (Berkeley) 5/19/1998 #####
##### @(#)always_add_domain.m4 8.6 (Berkeley) 5/19/1998 #####
##### @(#)use_cw_file.m4 8.6 (Berkeley) 5/19/1998 #####
##### @(#)local_procmail.m4 8.11 (Berkeley) 5/19/1998 #####
##### @(#)access_db.m4 8.8 (Berkeley) 5/19/1998 #####
##### @(#)blacklist_recipients.m4 8.9 (Berkeley) 5/19/1998 #####
##### @(#)accept_unresolvable_domains.m4 8.7 (Berkeley) 5/19/1998 #####
##### @(#)proto.m4 8.243 (Berkeley) 2/2/1999 #####
# level 8 config file format
V8/Berkeley
# override file safeties - setting this option compromises system security
# need to set this now for the sake of class files
#O DontBlameSendmail=safe
##################
# local info #
##################
Cwlocalhost
# file containing names of hosts for which we receive email
Fw/etc/sendmail.cw
Qw -Hlocalhost -Dwebmail -Tdomains
Kdomainalias mysql -Dwebmail -Mdomainalias -Laddress -Ralias
# my official domain name
# ... define this only if sendmail cannot automatically determine your domain
#Dj$w.Foo.COM
CP.
# "Smart" relay host (may be null)
DS
# operators that cannot be in local usernames (i.e., network indicators)
CO @ % !
# a class with just dot (for identifying canonical names)
C..
# a class with just a left bracket (for identifying domain literals)
C[[
# Mailer table (overriding domains)
Kmailertable hash -o /etc/mail/mailertable
# Virtual user table (maps incoming users)
Kvirtuser hash -o /etc/mail/virtusertable
# Access list database (for spam stomping)
Kaccess hash -o /etc/mail/access
# Hosts that will permit relaying ($=R)
FR-o /etc/mail/relay-domains
# who I send unqualified names to (null means deliver locally)
DR
# who gets all local email traffic ($R has precedence for unqualified names)
DH
# 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
#CL root
CE root
# who I masquerade as (null for no masquerading) (see also $=M)
DM
# my name for error messages
DnMAILER-DAEMON
CPREDIRECT
# Configuration version number
DZ8.9.3
###############
# Options #
###############
# strip message body to 7 bits on input?
O SevenBitInput=False
# 8-bit data handling
O EightBitMode=pass8
# wait for alias file rebuild (default units: minutes)
O AliasWait=10
# location of alias file
O AliasFile=/etc/aliases
# minimum number of free blocks on filesystem
O MinFreeBlocks=100
# maximum message size
#O MaxMessageSize=1000000
# substitution for space (blank) characters
O BlankSub=.
# avoid connecting to "expensive" mailers on initial submission?
O HoldExpensive=False
# checkpoint queue runs after every N successful deliveries
#O CheckpointInterval=10
# default delivery mode
O DeliveryMode=background
# automatically rebuild the alias database?
O AutoRebuildAliases=
# error message header/file
#O ErrorHeader=/etc/sendmail.oE
# error mode
#O ErrorMode=print
# save Unix-style "From_" lines at top of header?
#O SaveFromLine
# temporary file mode
O TempFileMode=0600
# match recipients against GECOS field?
#O MatchGECOS
# maximum hop count
#O MaxHopCount=17
# location of help file
O HelpFile=/usr/lib/sendmail.hf
# ignore dots as terminators in incoming messages?
#O IgnoreDots
# name resolver options
#O ResolverOptions=+AAONLY
# deliver MIME-encapsulated error messages?
O SendMimeErrors=True
# Forward file search path
O ForwardPath=$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
# use Errors-To: header?
O UseErrorsTo=False
# log level
O LogLevel=9
# send to me too, even in an alias expansion?
#O MeToo
# 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=Port=esmtp
# privacy flags
O PrivacyOptions=authwarnings
# who (if anyone) should get extra copies of error messages
#O PostMasterCopy=Postmaster
# slope of queue-only function
#O QueueFactor=600000
# queue directory
O QueueDirectory=/var/spool/mqueue
# timeouts (many of these)
#O Timeout.initial=5m
O Timeout.connect=1m
#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=30s
#O Timeout.fileopen=60s
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
# should we not prune routes in route-addr syntax addresses?
#O DontPruneRoutes
# 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=8:12
# list of locations of user database file (null means no lookup)
#O UserDatabaseSpec=/etc/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=true
# load average at which we just queue messages
#O QueueLA=8
# load average at which we refuse connections
#O RefuseLA=12
# maximum number of children we allow at one time
#O MaxDaemonChildren=12
# maximum number of new connections per second
#O ConnectionRateThrottle=3
# work recipient factor
#O RecipientFactor=30000
# deliver each queued job in a separate process?
#O ForkEachJob
# work class factor
#O ClassFactor=1800
# work time factor
#O RetryFactor=90000
# shall we sort the queue by hostname first?
#O QueueSortOrder=priority
# minimum time in queue before retry
#O MinQueueAge=30m
# default character set
#O DefaultCharSet=iso-8859-1
# service switch file (ignored on Solaris, Ultrix, OSF/1, others)
#O ServiceSwitchFile=/etc/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
# how many jobs can you process in the queue?
#O MaxQueueRunSize=10000
# shall I avoid expanding CNAMEs (violates protocols)?
#O DontExpandCnames
# 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 $o macro)
O OperatorChars=.:%@!^/[]+
# shall I avoid calling initgroups(3) because of high NIS costs?
#O DontInitGroups
# are group-writable :include: and .forward files (un)trustworthy?
#O UnsafeGroupWrites
# where do errors that occur when sending errors get sent?
#O DoubleBounceAddress=postmaster
# what user id do we assume for the majority of the processing?
#O RunAsUser=sendmail
# maximum number of recipients per SMTP envelope
#O MaxRecipientsPerMessage=100
# shall we get local names from our installed interfaces?
O DontProbeInterfaces=true
###########################
# Message precedences #
###########################
Pfirst-class=0
Pspecial-delivery=100
Plist=-30
Pbulk=-60
Pjunk=-100
#####################
# Trusted users #
#####################
# this is equivalent to setting class "t"
#Ft/etc/sendmail.ct
Troot
Tdaemon
Tuucp
#########################
# Format of headers #
#########################
H?P?Return-Path: <$g>
HReceived: $?sfrom $s $.$?_($?s$|from $.$_)
$.by $j ($v/$Z)$?r with $r$. id $i$?u
for $u; $|;
$.$b
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@$j>
#
######################################################################
######################################################################
#####
##### REWRITING RULES
#####
######################################################################
######################################################################
############################################
### Ruleset 3 -- Name Canonicalization ###
############################################
S3
# handle null input (translate to <@> special case)
R$@ $@ <@>
# strip group: syntax (not inside angle brackets!) and trailing semicolon
R$* $: $1 <@> mark addresses
R$* < $* > $* <@> $: $1 < $2 > $3 unmark <addr>
R@ $* <@> $: @ $1 unmark @host:...
R$* :: $* <@> $: $1 :: $2 unmark node::addr
R:include: $* <@> $: :include: $1 unmark :include:...
R$* [ $* : $* ] <@> $: $1 [ $2 : $3 ] unmark IPv6 addrs
R$* : $* [ $* ] $: $1 : $2 [ $3 ] <@> remark if leading colon
R$* : $* <@> $: $2 strip colon if marked
R$* <@> $: $1 unmark
R$* ; $1 strip trailing semi
R$* < $* ; > $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 <>
# make sure <@a,@b,@c:user@d> syntax is easy to parse -- undone later
R@ $+ , $+ @ $1 : $2 change all "," to ":"
# localize and dispose of route-based addresses
R@ $+ : $+ $@ $>96 < @$1 > : $2 handle <route-addr>
# find focus for list syntax
R $+ : $* ; @ $+ $@ $>96 $1 : $2 ; < @ $3 > list syntax
R $+ : $* ; $@ $1 : $2; list syntax
# find focus for @ syntax addresses
R$+ @ $+ $: $1 < @ $2 > focus on domain
R$+ < $+ @ $+ > $1 $2 < @ $3 > move gaze right
R$+ < @ $+ > $@ $>96 $1 < @ $2 > already canonical
# do some sanity checking
R$* < @ $* : $* > $* $1 < @ $2 $3 > $4 nix colons in addrs
# convert old-style addresses to a domain-based address
R$- ! $+ $@ $>96 $2 < @ $1 .UUCP > resolve uucp names
R$+ . $- ! $+ $@ $>96 $3 < @ $1 . $2 > domain uucps
R$+ ! $+ $@ $>96 $2 < @ $1 .UUCP > uucp subdomains
# if we have % signs, take the rightmost one
R$* % $* $1 @ $2 First make them all @s.
R$* @ $* @ $* $1 % $2 @ $3 Undo all but the last.
R$* @ $* $@ $>96 $1 < @ $2 > Insert < > and finish
# else we must be a local name
R$* $@ $>96 $1
################################################
### Ruleset 96 -- bottom half of ruleset 3 ###
################################################
S96
# handle special cases for local names
R$* < @ localhost > $* $: $1 < @ $j . > $2 no domain at all
R$* < @ localhost . $m > $* $: $1 < @ $j . > $2 local domain
R$* < @ localhost . UUCP > $* $: $1 < @ $j . > $2 .UUCP domain
R$* < @ [ $+ ] > $* $: $1 < @@ [ $2 ] > $3 mark [a.b.c.d]
R$* < @@ $=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 . > $3
# pass to name server to make hostname canonical
R$* < @ $* $~P > $* $: $1 < @ $[ $2 $3 $] > $4
# local host aliases and pseudo-domains are always canonical
R$* < @ $=w > $* $: $1 < @ $2 . > $3
R$* < @ $j > $* $: $1 < @ $j . > $2
R$* < @ $=M > $* $: $1 < @ $2 . > $3
R$* < @ $* $=P > $* $: $1 < @ $2 $3 . > $4
R$* < @ $* . . > $* $1 < @ $2 . > $3
##################################################
### Ruleset 4 -- Final Output Post-rewriting ###
##################################################
S4
R$* <@> $@ handle <> and list:;
# strip trailing dot off possibly canonical name
R$* < @ $+ . > $* $1 < @ $2 > $3
# eliminate internal code -- should never get this far!
R$* < @ *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!$1 [email protected] => h!u
# delete duplicate local names
R$+ % $=w @ $=w $1 @ $2 u%host@host => u@host
##############################################################
### Ruleset 97 -- recanonicalize and call ruleset zero ###
### (used for recursive calls) ###
##############################################################
S97
R$* $: $>3 $1
R$* $@ $>0 $1
######################################
### Ruleset 0 -- Parse Address ###
######################################
S0
R$* $: $>Parse0 $1 initial parsing
R<@> $#local $: <@> special case error msgs
R$* $: $>98 $1 handle local hacks
R$* $: $>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 $: "List:; syntax illegal for recipient addresses"
#R@ <@ $* > < @ $1 > catch "@@host" bogosity
R<@ $+> $#error $@ 5.1.3 $: "User address required"
R$* $: <> $1
R<> $* < @ [ $+ ] > $* $1 < @ [ $2 ] > $3
R<> $* <$* : $* > $* $#error $@ 5.1.3 $: "Colon illegal in host name part"
R<> $* $1
R$* < @ . $* > $* $#error $@ 5.1.2 $: "Invalid host name"
R$* < @ $* .. $* > $* $#error $@ 5.1.2 $: "Invalid host name"
# now delete the local info -- note $=O to find characters that cause forwarding
R$* < @ > $* $@ $>Parse0 $>3 $1 user@ => user
R< @ $=w . > : $* $@ $>Parse0 $>3 $2 @here:... -> ...
R$- < @ $=w . > $: $(dequote $1 $) < @ $2 . > dequote "foo"@here
R< @ $+ > $#error $@ 5.1.3 $: "User address required"
R$* $=O $* < @ $=w . > $@ $>Parse0 $>3 $1 $2 $3 ...@here -> ...
R$- $: $(dequote $1 $) < @ *LOCAL* > dequote "foo"
R< @ *LOCAL* > $#error $@ 5.1.3 $: "User address required"
R$* $=O $* < @ *LOCAL* >
$@ $>Parse0 $>3 $1 $2 $3 ...@*LOCAL* -> ...
R$* < @ *LOCAL* > $: $1
#
# Parse1 -- the bottom half of ruleset 0.
#
SParse1
# handle numeric address spec
R$* < @ [ $+ ] > $* $: $>98 $1 < @ [ $2 ] > $3 numeric internet spec
R$* < @ [ $+ ] > $* $#esmtp $@ [$2] $: $1 < @ [$2] > $3 still numeric: send
# handle virtual users
R$+ < @ $=w . > $: < $(virtuser $1 @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
R<@> $+ + $* < @ $* . >
$: < $(virtuser $1 + * @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ + $* < @ $* . >
$: < $(virtuser $1 @ $3 $@ $1 $: @ $) > $1 + $2 < @ $3 . >
R<@> $+ < @ $+ . > $: < $(virtuser @ $2 $@ $1 $: @ $) > $1 < @ $2 . >
R<@> $+ $: $1
R< error : $- $+ > $* $#error $@ $(dequote $1 $) $: $2
R< $+ > $+ < @ $+ > $: $>97 $1
# short circuit local delivery so forwarded email works
R$=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< $~[ : $* > $* $>95 < $1 : $2 > $3 check -- resolved?
R< $+ > $* $: $>90 <$1> $2 try domain
# resolve remotely connected UUCP links (if any)
# resolve fake top level domains by forwarding to other hosts
# pass names that still have a host to a smarthost (if defined)
R$* < @ $* > $* $: $>95 < $S > $1 < @ $2 > $3 glue on smarthost name
# deal with other remote names
R$* < @$* > $* $#esmtp $@ $2 $: $1 < @ $2 > $3 [email protected]
# handle locally delivered names
R$=L $#local $: @ $1 special local names
R$+ $#local $: $1 regular local names
###########################################################################
### Ruleset 5 -- special rewriting after aliases have been expanded ###
###########################################################################
S5
# deal with plussed users so aliases work nicely
R$+ + * $#local $@ $&h $: $1
R$+ + $* $#local $@ + $2 $: $1 + *
# prepend an empty "forward host" on the front
R$+ $: <> $1
# see if we have a relay or a hub
R< > $+ $: < $H > $1 try hub
R< > $+ $: < $R > $1 try relay
R< > $+ $: < > < $1 $&h > nope, restore +detail
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 : $* > $* $: $>95 < local : $1 > $2 no host extension
R< error : $* > $* $: $>95 < error : $1 > $2 no host extension
R< $- : $+ > $+ $: $>95 < $1 : $2 > $3 < @ $2 >
R< $+ > $+ $@ $>95 < $1 > $2 < @ $1 >
###################################################################
### Ruleset 90 -- try domain part of mailertable entry ###
###################################################################
S90
R$* <$- . $+ > $* $: $1$2 < $(mailertable .$3 $@ $1$2 $@ $2 $) > $4
R$* <$~[ : $* > $* $>95 < $2 : $3 > $4 check -- resolved?
R$* < . $+ > $* $@ $>90 $1 . <$2> $3 no -- strip & try again
R$* < $* > $* $: < $(mailertable . $@ $1$2 $) > $3 try "."
R< $~[ : $* > $* $>95 < $1 : $2 > $3 "." found?
R< $* > $* $@ $2 no mailertable match
###################################################################
### Ruleset 95 -- canonify mailer:[user@]host syntax to triple ###
###################################################################
S95
R< > $* $@ $1 strip off null relay
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< $* > < @ $+ > : $+ $@ $>97 $3
R< $* > $+ $=O $+ < @ $+ > $@ $>97 $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 $: $1
###################################################################
### Ruleset 93 -- convert header names to masqueraded form ###
###################################################################
S93
# special case the users that should be exposed
R$=E < @ *LOCAL* > $@ $1 < @ $j . > leave exposed
R$=E < @ $=M . > $@ $1 < @ $2 . >
R$=E < @ $=w . > $@ $1 < @ $2 . >
# handle domain-specific masquerading
R$* < @ $=M . > $* $: $1 < @ $2 . @ $M > $3 convert masqueraded doms
R$* < @ $=w . > $* $: $1 < @ $2 . @ $M > $3
R$* < @ *LOCAL* > $* $: $1 < @ $j . @ $M > $2
R$* < @ $+ @ > $* $: $1 < @ $2 > $3 $M is null
R$* < @ $+ @ $+ > $* $: $1 < @ $3 . > $4 $M is not null
###################################################################
### Ruleset 94 -- convert envelope names to masqueraded form ###
###################################################################
S94
R$* < @ *LOCAL* > $* $: $1 < @ $j . > $2
###################################################################
### Ruleset 98 -- local part of ruleset zero (can be null) ###
###################################################################
S98
R$+ < $+ . > $1 < $2 >
R$+ < $+ > $: < > $(domainalias $1$2 $)
R< > $+ @ $* $: < $1 > $(domainalias * @ $2 $)
R< $+ > * $* $: < > $1 $2
R < $+ > $+ $: < > $2
R< > $* $: $>3 $1
# addresses sent to [email protected] will give a 551 error code
#R$* < @ $+ .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>
######################################################################
### LookUpDomain -- search for domain in access database
###
### Parameters:
### <$1> -- key (domain name)
### <$2> -- default (what to return if not found in db)
### <$3> -- passthru (additional data passed unchanged through)
######################################################################
SLookUpDomain
R<$+> <$+> <$*> $: < $(access $1 $: ? $) > <$1> <$2> <$3>
R<?> <$+.$+> <$+> <$*> $@ $>LookUpDomain <$2> <$3> <$4>
R<?> <$+> <$+> <$*> $@ <$2> <$3>
R<$*> <$+> <$+> <$*> $@ <$1> <$4>
######################################################################
### 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)
### <$3> -- passthru (additional data passed through)
######################################################################
SLookUpAddress
R<$+> <$+> <$*> $: < $(access $1 $: ? $) > <$1> <$2> <$3>
R<?> <$+.$-> <$+> <$*> $@ $>LookUpAddress <$1> <$3> <$4>
R<?> <$+> <$+> <$*> $@ <$2> <$3>
R<$*> <$+> <$+> <$*> $@ <$1> <$4>
######################################################################
### 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 $>3 $1 make domain canonical
R< @ $+ > : $* @ $* < @ $1 > : $2 % $3 change @ to % in src route
R$* < @ $+ > : $* : $* $3 $1 < @ $2 > : $4 change to % hack.
R$* < @ $+ > : $* $3 $1 < @ $2 >
######################################################################
### 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> $* < @ $+ > $: $>LookUpDomain <$2> <NO> <$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< $* > $* $: $2
R$+ $| $+ $: $>LookUpDomain < $1 > <?> < $2 >
R<?> < $+ > $: $>LookUpAddress < $1 > <?> < $1 >
R<?> < $+ > $: $1
R<OK> < $* > $@ OK
R<RELAY> < $* > $@ RELAY
R<REJECT> $* $#error $@ 5.7.1 $: "550 Access denied"
R<DISCARD> $* $#discard $: discard
R<$+> $* $#error $@ 5.7.1 $: $1
######################################################################
### check_mail -- check SMTP `MAIL FROM:' command argument
######################################################################
SLocal_check_mail
Scheck_mail
R$* $: $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
R<> $@ <OK>
R$* $: <?> $>CanonAddr $1
R<?> $* < @ $+ . > <?> $1 < @ $2 > strip trailing dots
# handle non-DNS hostnames (*.bitnet, *.decnet, *.uucp, etc)
R<?> $* < $* $=P > $* $: <OK> $1 < @ $2 $3 > $4
R<?> $* < @ $+ > $* $: <OK> $1 < @ $2 > $3 ... unresolvable OK
# handle case of @localhost on address
R<$+> $* < @localhost > $: < ? $&{client_name} > <$1> $2 < @localhost >
R<$+> $* < @localhost.$m >
$: < ? $&{client_name} > <$1> $2 < @localhost.$m >
R<$+> $* < @localhost.UUCP >
$: < ? $&{client_name} > <$1> $2 < @localhost.UUCP >
R<? $=w> <$+> $* <?> <$2> $3
R<? $+> <$+> $* $#error $@ 5.5.4 $: "553 Real domain name required"
R<?> <$+> $* $: <$1> $2
# lookup localpart (user@)
R<$+> $* < @ $+ > $* $: <USER $(access $2@ $: ? $) > <$1> $2 < @ $3 > $4
# no match, try full address (user@domain rest)
R<USER ?> <$+> $* < @ $* > $*
$: <USER $(access $2@$3$4 $: ? $) > <$1> $2 < @ $3 > $4
# no match, try address (user@domain)
R<USER ?> <$+> $+ < @ $+ > $*
$: <USER $(access $2@$3 $: ? $) > <$1> $2 < @ $3 > $4
# no match, try (sub)domain (domain)
R<USER ?> <$+> $* < @ $+ > $*
$: $>LookUpDomain <$3> <$1> <>
# check unqualified user in access database
R<?> $* $: <USER $(access $1@ $: ? $) > <?> $1
# retransform for further use
R<USER $+> <$+> $* $: <$1> $3
# handle case of no @domain on address
R<?> $* $: < ? $&{client_name} > $1
R<?> $* $@ <OK> ...local unqualed ok
R<? $+> $* $#error $@ 5.5.4 $: "553 Domain name required"
...remote is not
# check results
R<?> $* $@ <OK>
R<OK> $* $@ <OK>
R<TEMP> $* $#error $@ 4.1.8 $: "451 Sender domain must resolve"
R<PERM> $* $#error $@ 5.1.8 $: "501 Sender domain must exist"
R<RELAY> $* $@ <RELAY>
R<DISCARD> $* $#discard $: discard
R<REJECT> $* $#error $@ 5.7.1 $: "550 Access denied"
R<$+> $* $#error $@ 5.7.1 $: $1 error from access db
######################################################################
### check_rcpt -- check SMTP `RCPT TO:' command argument
######################################################################
SLocal_check_rcpt
Scheck_rcpt
R$* $: $1 $| $>"Local_check_rcpt" $1
R$* $| $#$* $#$2
R$* $| $* $@ $>"Basic_check_rcpt" $1
SBasic_check_rcpt
# check for deferred delivery mode
R$* $: < ${deliveryMode} > $1
R< d > $* $@ deferred
R< $* > $* $: $2