40 lines
1.4 KiB
Plaintext
40 lines
1.4 KiB
Plaintext
divert(-1)
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#
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# Copyright (c) 1998-2002, 2005-2007 Proofpoint, Inc. and its suppliers.
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# All rights reserved.
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#
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# By using this file, you agree to the terms and conditions set
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# forth in the LICENSE file which can be found at the top level of
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# the sendmail distribution.
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#
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#
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ifdef(`DNSBL_MAP', `', `define(`DNSBL_MAP', `dns -R A')')
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divert(0)
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ifdef(`_DNSBL_R_',`dnl',`dnl
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VERSIONID(`$Id: dnsbl.m4,v 8.34 2013-11-22 20:51:11 ca Exp $')
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define(`_DNSBL_R_',`')
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ifelse(defn(`_ARG_'), `',
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`errprint(`*** ERROR: missing argument for FEATURE(`dnsbl')')')
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LOCAL_CONFIG
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# map for DNS based blacklist lookups
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Kdnsbl DNSBL_MAP -T<TMP>ifdef(`DNSBL_MAP_OPT',` DNSBL_MAP_OPT')')
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divert(-1)
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define(`_DNSBL_SRV_', `_ARG_')dnl
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define(`_DNSBL_MSG_', `ifelse(len(X`'_ARG2_),`1',`"550 Rejected: " $`'&{client_addr} " listed at '_DNSBL_SRV_`"',`_ARG2_')')dnl
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define(`_DNSBL_MSG_TMP_', `ifelse(_ARG3_,`t',`"451 Temporary lookup failure of " $`'&{client_addr} " at '_DNSBL_SRV_`"',`_ARG3_')')dnl
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divert(8)
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# DNS based IP address spam list _DNSBL_SRV_
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R$* $: $&{client_addr}
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R$-.$-.$-.$- $: <?> $(dnsbl $4.$3.$2.$1._DNSBL_SRV_. $: OK $)
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R<?>OK $: OKSOFAR
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ifelse(len(X`'_ARG3_),`1',
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`R<?>$+<TMP> $: TMPOK',
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`R<?>$+<TMP> $#error $@ 4.4.3 $: _DNSBL_MSG_TMP_')
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ifelse(`X'_ARG2_,`Xquarantine',
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`R<?>$+ $#error $@ quarantine $: _DNSBL_SRV_',
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`X'_ARG2_,`Xdiscard',
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`R<?>$+ $#discard $: _DNSBL_SRV_',
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`R<?>$+ $#error $@ 5.7.1 $: _DNSBL_MSG_')
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divert(-1)
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