# Copyright (c) 1983 Eric P. Allman
# Copyright (c) 1988, 1993
# The Regents of the University of California. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the University of
# California, Berkeley and its contributors.
# 4. Neither the name of the University nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
VERSIONID(`@(#)nullrelay.m4 8.5 (Berkeley) 2/1/94')
# This configuration applies only to relay-only hosts. They send
# all mail to a hub without consideration of the address syntax
# or semantics, except for adding the hub qualification to the
# This is based on a prototype done by Bryan Costales of ICSI.
# hub host (to which all mail is sent)
DH`'ifdef(`MAIL_HUB', MAIL_HUB,
`errprint(`MAIL_HUB not defined for nullclient feature')')
# name from which everyone will appear to come
DM`'ifdef(`MASQUERADE_NAME', MASQUERADE_NAME, MAIL_HUB)
# SMTP initial login message
# UNIX initial From header format
# my name for error messages
# delimiter (operator) characters
include(`../m4/version.m4')
# strip message body to 7 bits on input?
# substitution for space (blank) characters
# error message header/file
ifdef(`confERROR_MESSAGE',
# save Unix-style "From_" lines at top of header?
OH`'ifdef(`HELP_FILE', HELP_FILE, /usr/lib/sendmail.hf)
# ignore dots as terminators in incoming messages?
# Insist that the BIND name server be running to resolve names
# deliver MIME-encapsulated error messages?
Oj`'confMIME_FORMAT_ERRORS
# open connection cache size
# open connection cache timeout
OK`'confMCI_CACHE_TIMEOUT
# send to me too, even in an alias expansion?
# default messages to old style headers if no special punctuation?
Oo`'confOLD_STYLE_HEADERS
ifdef(`confDAEMON_OPTIONS',
# who (if anyone) should get extra copies of error messages
ifdef(`confCOPY_ERRORS_TO',
# slope of queue-only function
ifdef(`confQUEUE_FACTOR',
OQ`'ifdef(`QUEUE_DIR', QUEUE_DIR, /var/spool/mqueue)
# read timeout -- now OK per RFC 1123 section 5.3.2
ifdef(`confREAD_TIMEOUT',
# queue up everything before forking?
OS`'ifdef(`STATUS_FILE', STATUS_FILE, /etc/sendmail.st)
# default message timeout interval
# if undefined, use system default
# if defined but null, use TZ envariable passed in
# if defined and non-null, use that info
ifelse(confTIME_ZONE, `USE_SYSTEM', `#Ot',
confTIME_ZONE, `USE_TZ', `Ot',
# deliver each queued job in a separate process?
ifdef(`confWORK_CLASS_FACTOR',
Oz`'confWORK_CLASS_FACTOR,
ifdef(`confWORK_TIME_FACTOR',
OZ`'confWORK_TIME_FACTOR,
###########################
###########################
#########################
#########################
HReceived: $?sfrom $s $.$?_($_) $.by $j ($v/$Z)$?r with $r$. id $i$?u for $u$.; $b
H?M?Resent-Message-Id: <$t.$i@$j>
H?M?Message-Id: <$t.$i@$j>
######################################################################
######################################################################
######################################################################
######################################################################
###########################################
### Rulset 3 -- Name Canonicalization ###
###########################################
# handle null input and list syntax (translate to <@> special case)
# basic textual canonicalization -- note RFC733 heuristic here
R$*<$*>$*<$*>$* $2$3<$4>$5 strip multiple <> <>
R$*<$*<$+>$*>$* <$3>$5 2-level <> nesting
R$*<>$* $@ <@> MAIL FROM:<> case
R$*<$+>$* $2 basic RFC821/822 parsing
ifdef(`_NO_CANONIFY_', `dnl',
`# eliminate local host if present
R@ $=w $=: $+ $@ @ $M $2 $3 @thishost ...
R@ $+ $@ @ $1 @somewhere ...
R$+ @ $=w $@ $1 @ $M ...@thishost
R$+ @ $+ $@ $1 @ $2 ...@somewhere
R$=w ! $+ $@ $2 @ $M thishost!...
R$+ ! $+ $@ $1 ! $2 @ $M somewhere ! ...
R$+ % $=w $@ $1 @ $M ...%thishost
R$+ % $+ $@ $1 @ $2 ...%somewhere
R$+ $@ $1 @ $M unadorned user')
######################################
### Ruleset 0 -- Parse Address ###
######################################
R$*:;<@> $#error $@ USAGE $: "list:; syntax illegal for recipient addresses"
# pass everything else to a relay host
R$* $#_RELAY_ $@ $H $: $1
######################################################################
######################################################################
`##### MAILER DEFINITIONS'
######################################################################
######################################################################