1divert(-1) 2# 3# Copyright (c) 1998-2002, 2005-2007 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# 11 12ifdef(`DNSBL_MAP', `', `define(`DNSBL_MAP', `dns -R A')') 13divert(0) 14ifdef(`_DNSBL_R_',`dnl',`dnl 15VERSIONID(`$Id: dnsbl.m4,v 8.33 2007/01/05 18:49:29 ca Exp $') 16define(`_DNSBL_R_',`') 17ifelse(defn(`_ARG_'), `', 18 `errprint(`*** ERROR: missing argument for FEATURE(`dnsbl')')') 19LOCAL_CONFIG 20# map for DNS based blacklist lookups 21Kdnsbl DNSBL_MAP -T<TMP>ifdef(`DNSBL_MAP_OPT',` DNSBL_MAP_OPT')') 22divert(-1) 23define(`_DNSBL_SRV_', `_ARG_')dnl 24define(`_DNSBL_MSG_', `ifelse(len(X`'_ARG2_),`1',`"550 Rejected: " $`'&{client_addr} " listed at '_DNSBL_SRV_`"',`_ARG2_')')dnl 25define(`_DNSBL_MSG_TMP_', `ifelse(_ARG3_,`t',`"451 Temporary lookup failure of " $`'&{client_addr} " at '_DNSBL_SRV_`"',`_ARG3_')')dnl 26divert(8) 27# DNS based IP address spam list _DNSBL_SRV_ 28R$* $: $&{client_addr} 29R$-.$-.$-.$- $: <?> $(dnsbl $4.$3.$2.$1._DNSBL_SRV_. $: OK $) 30R<?>OK $: OKSOFAR 31ifelse(len(X`'_ARG3_),`1', 32`R<?>$+<TMP> $: TMPOK', 33`R<?>$+<TMP> $#error $@ 4.4.3 $: _DNSBL_MSG_TMP_') 34ifelse(`X'_ARG2_,`Xquarantine', 35`R<?>$+ $#error $@ quarantine $: _DNSBL_SRV_', 36`X'_ARG2_,`Xdiscard', 37`R<?>$+ $#discard $: _DNSBL_SRV_', 38`R<?>$+ $#error $@ 5.7.1 $: _DNSBL_MSG_') 39divert(-1) 40