1*7c478bd9Sstevel@tonic-gatedivert(-1) 2*7c478bd9Sstevel@tonic-gate# 3*7c478bd9Sstevel@tonic-gate# Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers. 4*7c478bd9Sstevel@tonic-gate# All rights reserved. 5*7c478bd9Sstevel@tonic-gate# Copyright (c) 1983 Eric P. Allman. All rights reserved. 6*7c478bd9Sstevel@tonic-gate# Copyright (c) 1988, 1993 7*7c478bd9Sstevel@tonic-gate# The Regents of the University of California. All rights reserved. 8*7c478bd9Sstevel@tonic-gate# 9*7c478bd9Sstevel@tonic-gate# By using this file, you agree to the terms and conditions set 10*7c478bd9Sstevel@tonic-gate# forth in the LICENSE file which can be found at the top level of 11*7c478bd9Sstevel@tonic-gate# the sendmail distribution. 12*7c478bd9Sstevel@tonic-gate# 13*7c478bd9Sstevel@tonic-gate#ident "%Z%%M% %I% %E% SMI" 14*7c478bd9Sstevel@tonic-gate# 15*7c478bd9Sstevel@tonic-gate 16*7c478bd9Sstevel@tonic-gatedivert(0) 17*7c478bd9Sstevel@tonic-gateVERSIONID(`$Id: bestmx_is_local.m4,v 8.26 2000/09/17 17:30:00 gshapiro Exp $') 18*7c478bd9Sstevel@tonic-gatedivert(-1) 19*7c478bd9Sstevel@tonic-gate 20*7c478bd9Sstevel@tonic-gatedefine(`_BESTMX_IS_LOCAL_', _ARG_) 21*7c478bd9Sstevel@tonic-gate 22*7c478bd9Sstevel@tonic-gateLOCAL_CONFIG 23*7c478bd9Sstevel@tonic-gate# turn on bestMX lookup table 24*7c478bd9Sstevel@tonic-gateKbestmx bestmx 25*7c478bd9Sstevel@tonic-gateifelse(defn(`_ARG_'), `', `dnl',` 26*7c478bd9Sstevel@tonic-gate# limit bestmx to these domains 27*7c478bd9Sstevel@tonic-gateCB`'_ARG_') 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gateLOCAL_NET_CONFIG 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate# If we are the best MX for a site, then we want to accept 32*7c478bd9Sstevel@tonic-gate# its mail as local. We assume we've already weeded out mail to 33*7c478bd9Sstevel@tonic-gate# UUCP sites which are connected to us, which should also have 34*7c478bd9Sstevel@tonic-gate# listed us as their best MX. 35*7c478bd9Sstevel@tonic-gate# 36*7c478bd9Sstevel@tonic-gate# Warning: this may generate a lot of extra DNS traffic -- a 37*7c478bd9Sstevel@tonic-gate# lower cost method is to list all the expected best MX hosts 38*7c478bd9Sstevel@tonic-gate# in $=w. This should be fine (and easier to administer) for 39*7c478bd9Sstevel@tonic-gate# low to medium traffic hosts. If you use the limited bestmx 40*7c478bd9Sstevel@tonic-gate# by passing in a set of possible domains it will improve things. 41*7c478bd9Sstevel@tonic-gate 42*7c478bd9Sstevel@tonic-gateifelse(defn(`_ARG_'), `', `dnl 43*7c478bd9Sstevel@tonic-gate# unlimited bestmx 44*7c478bd9Sstevel@tonic-gateR$* < @ $* > $* $: $1 < @ $2 @@ $(bestmx $2 $) > $3', 45*7c478bd9Sstevel@tonic-gate`dnl 46*7c478bd9Sstevel@tonic-gate# limit bestmx to $=B 47*7c478bd9Sstevel@tonic-gateR$* < @ $* $=B . > $* $: $1 < @ $2 $3 . @@ $(bestmx $2 $3 . $) > $4') 48*7c478bd9Sstevel@tonic-gateR$* $=O $* < @ $* @@ $=w . > $* $@ $>Recurse $1 $2 $3 49*7c478bd9Sstevel@tonic-gateR< @ $* @@ $=w . > : $* $@ $>Recurse $3 50*7c478bd9Sstevel@tonic-gatednl we cannot use _LOCAL_ here since it is defined too late 51*7c478bd9Sstevel@tonic-gateR$* < @ $* @@ $=w . > $* $@ $>CanonLocal < $1 > 52*7c478bd9Sstevel@tonic-gateR$* < @ $* @@ $* > $* $: $1 < @ $2 > $4 53