PUSHDIVERT(-1)
#
# Copyright (c) 1983 Eric P. Allman
# Copyright (c) 1988, 1993
#	The Regents of the University of California.  All rights reserved.
#
# %sccs.include.redist.sh%
#
ifdef(`SMTP_MAILER_FLAGS',,
	`define(`SMTP_MAILER_FLAGS',
		`ifdef(`_OLD_SENDMAIL_', `L', `')')')
POPDIVERT
#####################################
###   SMTP Mailer specification   ###
#####################################

VERSIONID(`@(#)smtp.m4	8.10 (Berkeley) 12/18/93')

Msmtp,		P=[IPC], F=CONCAT(mDFMuX, SMTP_MAILER_FLAGS), S=11/31, R=ifdef(`_ALL_MASQUERADE_', `11/31', `21'), E=\r\n,
		ifdef(`_OLD_SENDMAIL_',, `L=990, ')A=IPC $h
Mesmtp,		P=[IPC], F=CONCAT(mDFMuXa, SMTP_MAILER_FLAGS), S=11/31, R=ifdef(`_ALL_MASQUERADE_', `11/31', `21'), E=\r\n,
		ifdef(`_OLD_SENDMAIL_',, `L=990, ')A=IPC $h
Mrelay,		P=[IPC], F=CONCAT(mDFMuXa, SMTP_MAILER_FLAGS), S=11/31, R=0, E=\r\n,
		ifdef(`_OLD_SENDMAIL_',, `L=2040, ')A=IPC $h

#
#  envelope sender and masquerading recipient rewriting
#
S11
R$+			$: $>51 $1			sender/recipient common
R$* :; <@>		$@ $1 :;			list:; special case

# handle unqualified names
R$* < @ $* > $*		$@ $1 < @ $2 > $3		already qualified
R$*			$@ $>61 $1


#
#  header recipient rewriting if not masquerading recipients
#
S21

# do sender/recipient common rewriting
R$+			$: $>51 $1

# unqualified names (e.g., "eric") are qualified by local host
R$* < @ $* > $*		$@ $1 < @ $2 > $3		already qualified
R$+			$: $1 < @ $j >			add local domain


#
#  header sender and masquerading recipient rewriting
#
S31
R$+			$: $>51 $1			sender/recipient common
R$* :; <@>		$@ $1 :;			list:; special case

# do special header rewriting
R$* <@> $*		$@ $1 <@> $2			pass null host through
R< @ $* > $*		$@ < @ $1 > $2			pass route-addr through
R$=E < @ $=w . >	$@ $1 < @ $2 >			exposed user as is
R$* < @ $=w . >		$: $1 < @ $M >			masquerade as domain
R$* < @ >		$: $1 < @ $j >			in case $M undefined

# handle unqualified names
R$* < @ $* > $*		$@ $1 < @ $2 > $3		already qualified
R$*			$@ $>61 $1


#
#  common rewriting for all SMTP addresses
#
S51

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

# output fake domains as user%fake@relay
ifdef(`BITNET_RELAY',
`R$+ <@ $+ .BITNET. >	$: $1 % $2 .BITNET < @ $B >	user@host.BITNET
R$+.BITNET. <@ $+:$+ >	$: $1 .BITNET < @ $3 >		strip mailer: part',
	`dnl')
ifdef(`CSNET_RELAY',
`R$+ <@ $+ .CSNET. >	$: $1 % $2 .CSNET < @ $C >	user@host.CSNET
R$+.CSNET. <@ $+:$+ >	$: $1 .CSNET < @ $3 >		strip mailer: part',
	`dnl')
ifdef(`_NO_UUCP_', `dnl',
`R$+ <@ $+ .UUCP. >	$: $2 ! $1 < @ $j >		user@host.UUCP')


#
#  common sender and masquerading recipient rewriting
#
S61

R$=E			$@ $1 < @ $j>			show exposed names
R$+			$: $1 < @ $M >			user w/o host
R$+ <@>			$: $1 < @ $j >			in case $M undefined