One Hat Cyber Team

Edit File: 20_dnsbl_tests.cf

# SpamAssassin rules file: DNS blacklist and whitelist tests
#
# Please don't modify this file as your changes will be overwritten with
# the next update. Use @@LOCAL_RULES_DIR@@/local.cf instead.
# See 'perldoc Mail::SpamAssassin::Conf' for details.
#
# <@LICENSE>
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to you under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# </@LICENSE>
#
###########################################################################

require_version 3.004000

###########################################################################

ifplugin Mail::SpamAssassin::Plugin::DNSEval

# See the Mail::SpamAssassin::Conf manual page for details of how to use
# check_rbl().

# ---------------------------------------------------------------------------
# Multizone / Multi meaning BLs first.
#
# Note that currently TXT queries cannot be used for these, since the
# DNSBLs do not return the A type (127.0.0.x) as part of the TXT reply.

# ---------------------------------------------------------------------------
# SORBS
# transfers: both axfr and ixfr available
# URL: http://www.dnsbl.sorbs.net/
# pay-to-use: no
# delist: $50 fee for RCVD_IN_SORBS_SPAM, others have free retest on request

header __RCVD_IN_SORBS          eval:check_rbl('sorbs', 'dnsbl.sorbs.net.')
describe __RCVD_IN_SORBS        SORBS: sender is listed in SORBS
tflags __RCVD_IN_SORBS          net
reuse  __RCVD_IN_SORBS

header RCVD_IN_SORBS_HTTP       eval:check_rbl_sub('sorbs', '127.0.0.2')
describe RCVD_IN_SORBS_HTTP     SORBS: sender is open HTTP proxy server
tflags RCVD_IN_SORBS_HTTP       net
reuse  RCVD_IN_SORBS_HTTP

header RCVD_IN_SORBS_SOCKS      eval:check_rbl_sub('sorbs', '127.0.0.3')
describe RCVD_IN_SORBS_SOCKS    SORBS: sender is open SOCKS proxy server
tflags RCVD_IN_SORBS_SOCKS      net
reuse  RCVD_IN_SORBS_SOCKS

header RCVD_IN_SORBS_MISC       eval:check_rbl_sub('sorbs', '127.0.0.4')
describe RCVD_IN_SORBS_MISC     SORBS: sender is open proxy server
tflags RCVD_IN_SORBS_MISC       net
reuse  RCVD_IN_SORBS_MISC

header RCVD_IN_SORBS_SMTP       eval:check_rbl_sub('sorbs', '127.0.0.5')
describe RCVD_IN_SORBS_SMTP     SORBS: sender is open SMTP relay
tflags RCVD_IN_SORBS_SMTP       net
reuse  RCVD_IN_SORBS_SMTP

# delist: $50 fee
#header RCVD_IN_SORBS_SPAM      eval:check_rbl_sub('sorbs', '127.0.0.6')
#describe RCVD_IN_SORBS_SPAM    SORBS: sender is a spam source
#tflags RCVD_IN_SORBS_SPAM      net
#reuse  RCVD_IN_SORBS_SPAM      RCVD_IN_SORBS_SPAM

header RCVD_IN_SORBS_WEB        eval:check_rbl_sub('sorbs', '127.0.0.7')
describe RCVD_IN_SORBS_WEB      SORBS: sender is an abusable web server
tflags RCVD_IN_SORBS_WEB        net
reuse  RCVD_IN_SORBS_WEB

header RCVD_IN_SORBS_BLOCK      eval:check_rbl_sub('sorbs', '127.0.0.8')
describe RCVD_IN_SORBS_BLOCK    SORBS: sender demands to never be tested
tflags RCVD_IN_SORBS_BLOCK      net
reuse  RCVD_IN_SORBS_BLOCK

header RCVD_IN_SORBS_ZOMBIE     eval:check_rbl_sub('sorbs', '127.0.0.9')
describe RCVD_IN_SORBS_ZOMBIE   SORBS: sender is on a hijacked network
tflags RCVD_IN_SORBS_ZOMBIE     net
reuse  RCVD_IN_SORBS_ZOMBIE

header RCVD_IN_SORBS_DUL        eval:check_rbl('sorbs-lastexternal', 'dnsbl.sorbs.net.', '127.0.0.10')
describe RCVD_IN_SORBS_DUL      SORBS: sent directly from dynamic IP address
tflags RCVD_IN_SORBS_DUL        net
reuse  RCVD_IN_SORBS_DUL

# ---------------------------------------------------------------------------
# Spamhaus ZEN includes SBL+CSS+XBL+PBL
#
# Spamhaus XBL contains both the Abuseat CBL (cbl.abuseat.org) and Blitzed
# OPM (opm.blitzed.org) lists so it's not necessary to query those as well.

header __RCVD_IN_ZEN            eval:check_rbl('zen', 'zen.spamhaus.org.')
describe __RCVD_IN_ZEN          Received via a relay in Spamhaus Zen
tflags __RCVD_IN_ZEN            net
reuse  __RCVD_IN_ZEN

# SBL is the Spamhaus Block List: http://www.spamhaus.org/sbl/
header RCVD_IN_SBL              eval:check_rbl_sub('zen', '127.0.0.2')
describe RCVD_IN_SBL            Received via a relay in Spamhaus SBL
tflags RCVD_IN_SBL              net
reuse  RCVD_IN_SBL

# XBL is the Exploits Block List: http://www.spamhaus.org/xbl/
header RCVD_IN_XBL              eval:check_rbl('zen-lastexternal', 'zen.spamhaus.org.', '^127\.0\.0\.[45678]$')
describe RCVD_IN_XBL            Received via a relay in Spamhaus XBL
tflags RCVD_IN_XBL              net
reuse  RCVD_IN_XBL

# PBL is the Policy Block List: http://www.spamhaus.org/pbl/
header RCVD_IN_PBL              eval:check_rbl('zen-lastexternal', 'zen.spamhaus.org.', '^127\.0\.0\.1[01]$')
describe RCVD_IN_PBL            Received via a relay in Spamhaus PBL
tflags RCVD_IN_PBL              net
reuse  RCVD_IN_PBL

# ---------------------------------------------------------------------------
# Now, single zone BLs follow:

# another domain-based blacklist
header DNS_FROM_AHBL_RHSBL      eval:check_rbl_envfrom('ahbl', 'rhsbl.ahbl.org.')
describe DNS_FROM_AHBL_RHSBL    Envelope sender listed in dnsbl.ahbl.org
tflags DNS_FROM_AHBL_RHSBL      net
reuse  DNS_FROM_AHBL_RHSBL

# ---------------------------------------------------------------------------
# NOTE: donation tests, see README file for details

header RCVD_IN_BL_SPAMCOP_NET   eval:check_rbl_txt('spamcop', 'bl.spamcop.net.', '(?i:spamcop)')
describe RCVD_IN_BL_SPAMCOP_NET Received via a relay in bl.spamcop.net
tflags RCVD_IN_BL_SPAMCOP_NET   net
reuse  RCVD_IN_BL_SPAMCOP_NET

# ---------------------------------------------------------------------------
# NOTE: commercial tests, see README file for details

header RCVD_IN_MAPS_RBL         eval:check_rbl('rblplus', 'activationcode.r.mail-abuse.com.', '1')
describe RCVD_IN_MAPS_RBL       Relay in RBL, http://www.mail-abuse.com/enduserinfo_rbl.html
tflags RCVD_IN_MAPS_RBL         net

header RCVD_IN_MAPS_DUL         eval:check_rbl('rblplus-lastexternal', 'activationcode.r.mail-abuse.com.', '2')
describe RCVD_IN_MAPS_DUL       Relay in DUL, http://www.mail-abuse.com/enduserinfo_dul.html
tflags RCVD_IN_MAPS_DUL         net

header RCVD_IN_MAPS_RSS         eval:check_rbl_sub('rblplus', '4')
describe RCVD_IN_MAPS_RSS       Relay in RSS, http://www.mail-abuse.com/enduserinfo_rss.html
tflags RCVD_IN_MAPS_RSS         net

header RCVD_IN_MAPS_OPS         eval:check_rbl_sub('rblplus', '8')
describe RCVD_IN_MAPS_OPS       Relay in OPS, http://www.mail-abuse.com/enduserinfo_ops.html
tflags RCVD_IN_MAPS_OPS         net

# The NML isn't part of the RBL+ and I find any documentation for it - is it dead?
header RCVD_IN_MAPS_NML         eval:check_rbl('nml', 'nonconfirm.mail-abuse.com.')
describe RCVD_IN_MAPS_NML       Relay in NML, http://www.mail-abuse.com/enduserinfo_nml.html
tflags RCVD_IN_MAPS_NML         net

# ---------------------------------------------------------------------------
# Section for DNS WL related lookups below.

# IADB support ...
header __RCVD_IN_IADB           eval:check_rbl('iadb-firsttrusted', 'iadb.isipp.com.')
tflags __RCVD_IN_IADB           net nice

header RCVD_IN_IADB_VOUCHED     eval:check_rbl_sub('iadb-firsttrusted', '127.0.1.255')
describe RCVD_IN_IADB_VOUCHED   ISIPP IADB lists as vouched-for sender
tflags RCVD_IN_IADB_VOUCHED     net nice

# ---------------------------------------------------------------------------
# Return Path Certified:
# http://www.returnpath.net/internetserviceprovider/certification/
# (replaces RCVD_IN_BSP_TRUSTED, RCVD_IN_BSP_OTHER, RCVD_IN_SSC_TRUSTED_COI)
header RCVD_IN_RP_CERTIFIED     eval:check_rbl_txt('ssc-firsttrusted', 'sa-trusted.bondedsender.org.')
describe RCVD_IN_RP_CERTIFIED   Sender in ReturnPath Certified - Contact cert-sa@returnpath.net
tflags RCVD_IN_RP_CERTIFIED     net nice

# Return Path Safe:
# http://www.returnpath.net/internetserviceprovider/certification/
# (replaces HABEAS_ACCREDITED_COI, HABEAS_ACCREDITED_SOI, HABEAS_CHECKED)
header RCVD_IN_RP_SAFE     eval:check_rbl_txt('ssc-firsttrusted','sa-accredit.habeas.com.')
describe RCVD_IN_RP_SAFE   Sender in ReturnPath Safe - Contact safe-sa@returnpath.net
tflags RCVD_IN_RP_SAFE     net nice

# Return Path Reputation Network Blacklist (RNBL):
# https://senderscore.org/blacklistlookup/
header RCVD_IN_RP_RNBL         eval:check_rbl('rnbl-lastexternal','bl.score.senderscore.com.')
describe RCVD_IN_RP_RNBL       Relay in RNBL, https://senderscore.org/blacklistlookup/
tflags RCVD_IN_RP_RNBL         net

endif

ifplugin Mail::SpamAssassin::Plugin::AskDNS

askdns   DKIMDOMAIN_IN_DWL  _DKIMDOMAIN_._vouch.dwl.spamhaus.org TXT /^([a-z]+ )*(transaction|list|all)( [a-z]+)*$/
tflags   DKIMDOMAIN_IN_DWL  net nice
describe DKIMDOMAIN_IN_DWL  Signing domain listed in Spamhaus DWL

askdns   __DKIMDOMAIN_IN_DWL_ANY  _DKIMDOMAIN_._vouch.dwl.spamhaus.org TXT
tflags   __DKIMDOMAIN_IN_DWL_ANY  net nice
describe __DKIMDOMAIN_IN_DWL_ANY  Any TXT response received from a Spamhaus DWL

meta DKIMDOMAIN_IN_DWL_UNKNOWN    __DKIMDOMAIN_IN_DWL_ANY && !DKIMDOMAIN_IN_DWL
tflags   DKIMDOMAIN_IN_DWL_UNKNOWN  net nice
describe DKIMDOMAIN_IN_DWL_UNKNOWN  Unrecognized response from Spamhaus DWL

endif