divert(-1)

#

# Copyright (c) 2000-2002, 2005-2007 Proofpoint, Inc. and its suppliers.

# All rights reserved.

#

# By using this file, you agree to the terms and conditions set

# forth in the LICENSE file which can be found at the top level of

# the sendmail distribution.

#

#

ifelse(defn(`_ARG_'), `',

`errprint(`*** ERROR: missing argument for FEATURE(`enhdnsbl')')')

divert(0)

ifdef(`_EDNSBL_R_',`dnl',`dnl

VERSIONID(`$Id: enhdnsbl.m4,v 1.13 2013-11-22 20:51:11 ca Exp $')

LOCAL_CONFIG

define(`_EDNSBL_R_',`')dnl

# map for enhanced DNS based blacklist lookups

Kednsbl dns -R A -a. -T<TMP> -r`'ifdef(`EDNSBL_TO',`EDNSBL_TO',`5')

')

divert(-1)

define(`_EDNSBL_SRV_', `_ARG_')dnl

define(`_EDNSBL_MSG_',

`ifelse(len(X`'_ARG2_),`1',`"550 Rejected: " $`'&{client_addr} " listed at '_EDNSBL_SRV_`"',

X`'_ARG2_,`Xquarantine',`_EDNSBL_SRV_',

`_ARG2_')')dnl

define(`_EDNSBL_MSG_TMP_', `ifelse(_ARG3_,`t',`"451 Temporary lookup failure of " $`'&{client_addr} " at '_EDNSBL_SRV_`"',`_ARG3_')')dnl

define(`_EDNSBL_MATCH_', `ifelse(len(X`'_ARG4_),`1',`$`'+',_ARG4_)')dnl

define(`_EDNSBL_ACTION_',

`ifelse(X`'_ARG2_,`Xquarantine',`$`'#error $`'@ quarantine',

X`'_ARG2_,`Xdiscard',`$`'#discard',

`$`'#error $`'@ 5.7.1')')dnl

divert(8)

# DNS based IP address spam list _EDNSBL_SRV_

R$* $: $&{client_addr}

R$-.$-.$-.$- $: <?> $(ednsbl $4.$3.$2.$1._EDNSBL_SRV_. $: OK $)

R<?>OK $: OKSOFAR

ifelse(len(X`'_ARG3_),`1',

`R<?>$+<TMP> $: TMPOK',

`R<?>$+<TMP> $#error $@ 4.4.3 $: _EDNSBL_MSG_TMP_')

R<?>_EDNSBL_MATCH_ _EDNSBL_ACTION_ $: _EDNSBL_MSG_

ifelse(len(X`'_ARG5_),`1',`dnl',

`R<?>_ARG5_ _EDNSBL_ACTION_ $: _EDNSBL_MSG_')

ifelse(len(X`'_ARG6_),`1',`dnl',

`R<?>_ARG6_ _EDNSBL_ACTION_ $: _EDNSBL_MSG_')

ifelse(len(X`'_ARG7_),`1',`dnl',

`R<?>_ARG7_ _EDNSBL_ACTION_ $: _EDNSBL_MSG_')

ifelse(len(X`'_ARG8_),`1',`dnl',

`R<?>_ARG8_ _EDNSBL_ACTION_ $: _EDNSBL_MSG_')

ifelse(len(X`'_ARG9_),`1',`dnl',

`R<?>_ARG9_ _EDNSBL_ACTION_ $: _EDNSBL_MSG_')

divert(-1)