1divert(-1)
2#
3# Copyright (c) 1998-2002, 2005 Sendmail, Inc. and its suppliers.
4#	All rights reserved.
5#
6# By using this file, you agree to the terms and conditions set
7# forth in the LICENSE file which can be found at the top level of
8# the sendmail distribution.
9#
10# ident	"%Z%%M%	%I%	%E% SMI"
11#
12
13ifdef(`DNSBL_MAP', `', `define(`DNSBL_MAP', `dns -R A')')
14divert(0)
15ifdef(`_DNSBL_R_',`dnl',`dnl
16VERSIONID(`$Id: dnsbl.m4,v 8.30 2005/07/25 20:56:53 ca Exp $')
17define(`_DNSBL_R_',`')
18LOCAL_CONFIG
19# map for DNS based blacklist lookups
20Kdnsbl DNSBL_MAP -T<TMP>ifdef(`DNSBL_MAP_OPT',` DNSBL_MAP_OPT')')
21divert(-1)
22define(`_DNSBL_SRV_', `ifelse(len(X`'_ARG_),`1',`blackholes.mail-abuse.org',_ARG_)')dnl
23define(`_DNSBL_MSG_', `ifelse(len(X`'_ARG2_),`1',`"550 Rejected: " $`'&{client_addr} " listed at '_DNSBL_SRV_`"',`_ARG2_')')dnl
24define(`_DNSBL_MSG_TMP_', `ifelse(_ARG3_,`t',`"451 Temporary lookup failure of " $`'&{client_addr} " at '_DNSBL_SRV_`"',`_ARG3_')')dnl
25divert(8)
26# DNS based IP address spam list _DNSBL_SRV_
27R$*			$: $&{client_addr}
28R$-.$-.$-.$-		$: <?> $(dnsbl $4.$3.$2.$1._DNSBL_SRV_. $: OK $)
29R<?>OK			$: OKSOFAR
30ifelse(len(X`'_ARG3_),`1',
31`R<?>$+<TMP>		$: TMPOK',
32`R<?>$+<TMP>		$#error $@ 4.4.3 $: _DNSBL_MSG_TMP_')
33R<?>$+			$#error $@ 5.7.1 $: _DNSBL_MSG_
34divert(-1)
35