# SpamAssassin rules file: DNS blacklist 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> # Copyright 2004 Apache Software Foundation # # Licensed 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. # # ########################################################################### require_version @@VERSION@@ # 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. # Well, at least NJABL doesn't, it seems, as of Apr 7 2003. # --------------------------------------------------------------------------- # NJABL # URL: http://www.dnsbl.njabl.org/ header __RCVD_IN_NJABL eval:check_rbl('njabl', 'combined.njabl.org.') describe __RCVD_IN_NJABL Received via a relay in combined.njabl.org tflags __RCVD_IN_NJABL net header RCVD_IN_NJABL_RELAY eval:check_rbl_sub('njabl', '127.0.0.2') describe RCVD_IN_NJABL_RELAY NJABL: sender is confirmed open relay tflags RCVD_IN_NJABL_RELAY net header RCVD_IN_NJABL_DUL eval:check_rbl('njabl-notfirsthop', 'combined.njabl.org.', '127.0.0.3') describe RCVD_IN_NJABL_DUL NJABL: dialup sender did non-local SMTP tflags RCVD_IN_NJABL_DUL net header RCVD_IN_NJABL_SPAM eval:check_rbl_sub('njabl', '127.0.0.4') describe RCVD_IN_NJABL_SPAM NJABL: sender is confirmed spam source tflags RCVD_IN_NJABL_SPAM net header RCVD_IN_NJABL_MULTI eval:check_rbl_sub('njabl', '127.0.0.5') describe RCVD_IN_NJABL_MULTI NJABL: sent through multi-stage open relay tflags RCVD_IN_NJABL_MULTI net header RCVD_IN_NJABL_CGI eval:check_rbl_sub('njabl', '127.0.0.8') describe RCVD_IN_NJABL_CGI NJABL: sender is an open formmail tflags RCVD_IN_NJABL_CGI net header RCVD_IN_NJABL_PROXY eval:check_rbl_sub('njabl', '127.0.0.9') describe RCVD_IN_NJABL_PROXY NJABL: sender is an open proxy tflags RCVD_IN_NJABL_PROXY net # --------------------------------------------------------------------------- # 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 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 header RCVD_IN_SORBS_MISC eval:check_rbl_sub('sorbs', '127.0.0.3') describe RCVD_IN_SORBS_MISC SORBS: sender is open proxy server tflags RCVD_IN_SORBS_MISC net header RCVD_IN_SORBS_SMTP eval:check_rbl_sub('sorbs', '127.0.0.4') describe RCVD_IN_SORBS_SMTP SORBS: sender is open SMTP relay tflags RCVD_IN_SORBS_SMTP net header RCVD_IN_SORBS_SOCKS eval:check_rbl_sub('sorbs', '127.0.0.5') describe RCVD_IN_SORBS_SOCKS SORBS: sender is open SOCKS proxy server tflags RCVD_IN_SORBS_SOCKS net # 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 header RCVD_IN_SORBS_WEB eval:check_rbl_sub('sorbs', '127.0.0.7') describe RCVD_IN_SORBS_WEB SORBS: sender is a abuseable web server tflags RCVD_IN_SORBS_WEB net 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 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 header RCVD_IN_SORBS_DUL eval:check_rbl('sorbs-notfirsthop', '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 # --------------------------------------------------------------------------- # Spamhaus SBL+XBL # # 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_SBL_XBL eval:check_rbl('sblxbl', 'sbl-xbl.spamhaus.org.') describe __RCVD_IN_SBL_XBL Received via a relay in Spamhaus SBL+XBL tflags __RCVD_IN_SBL_XBL net # SBL is the Spamhaus Block List: http://www.spamhaus.org/sbl/ header RCVD_IN_SBL eval:check_rbl_sub('sblxbl', '127.0.0.2') describe RCVD_IN_SBL Received via a relay in Spamhaus SBL tflags RCVD_IN_SBL net # XBL is the Exploits Block List: http://www.spamhaus.org/xbl/ header RCVD_IN_XBL eval:check_rbl('sblxbl-notfirsthop', 'sbl-xbl.spamhaus.org.', '127.0.0.[456]') describe RCVD_IN_XBL Received via a relay in Spamhaus XBL tflags RCVD_IN_XBL net # --------------------------------------------------------------------------- # RFC-Ignorant blacklists (both name and IP based) header __RFC_IGNORANT_ENVFROM eval:check_rbl_envfrom('rfci_envfrom', 'fulldom.rfc-ignorant.org.') tflags __RFC_IGNORANT_ENVFROM net header DNS_FROM_RFC_DSN eval:check_rbl_sub('rfci_envfrom', '127.0.0.2') describe DNS_FROM_RFC_DSN Envelope sender in dsn.rfc-ignorant.org tflags DNS_FROM_RFC_DSN net header DNS_FROM_RFC_POST eval:check_rbl_sub('rfci_envfrom', '127.0.0.3') describe DNS_FROM_RFC_POST Envelope sender in postmaster.rfc-ignorant.org tflags DNS_FROM_RFC_POST net header DNS_FROM_RFC_ABUSE eval:check_rbl_sub('rfci_envfrom', '127.0.0.4') describe DNS_FROM_RFC_ABUSE Envelope sender in abuse.rfc-ignorant.org tflags DNS_FROM_RFC_ABUSE net header DNS_FROM_RFC_WHOIS eval:check_rbl_sub('rfci_envfrom', '127.0.0.5') describe DNS_FROM_RFC_WHOIS Envelope sender in whois.rfc-ignorant.org tflags DNS_FROM_RFC_WHOIS net # this is 127.0.0.6 if querying fullip.rfc-ignorant.org, but since there # is only one right now, we might as well get the TXT record version # 2004-10-21: disabled since ipwhois is going away #header RCVD_IN_RFC_IPWHOIS eval:check_rbl_txt('ipwhois-notfirsthop', 'ipwhois.rfc-ignorant.org.') #describe RCVD_IN_RFC_IPWHOIS Sent via a relay in ipwhois.rfc-ignorant.org #tflags RCVD_IN_RFC_IPWHOIS net # 127.0.0.7 is the response for an entire TLD in whois.rfc-ignorant.org, # but it has too many false positives. header DNS_FROM_RFC_BOGUSMX eval:check_rbl_sub('rfci_envfrom', '127.0.0.8') describe DNS_FROM_RFC_BOGUSMX Envelope sender in bogusmx.rfc-ignorant.org tflags DNS_FROM_RFC_BOGUSMX net # --------------------------------------------------------------------------- # Now, single zone BLs follow: # DSBL catches open relays, badly-installed CGI scripts and open SOCKS and # HTTP proxies. list.dsbl.org lists servers tested by "trusted" users, # multihop.dsbl.org lists servers which open SMTP servers relay through, # unconfirmed.dsbl.org lists servers tested by "untrusted" users. # See http://dsbl.org/ for full details. # transfers: yes - rsync and http, see http://dsbl.org/usage # pay-to-use: no # delist: automated/distributed header RCVD_IN_DSBL eval:check_rbl_txt('dsbl-notfirsthop', 'list.dsbl.org.') describe RCVD_IN_DSBL Received via a relay in list.dsbl.org tflags RCVD_IN_DSBL net ######################################################################## # another domain-based blacklist header DNS_FROM_AHBL_RHSBL eval:check_rbl_from_host('ahbl', 'rhsbl.ahbl.org.') describe DNS_FROM_AHBL_RHSBL From: sender listed in dnsbl.ahbl.org tflags DNS_FROM_AHBL_RHSBL net # sa-hil.habeas.com for SpamAssassin queries # hil.habeas.com for other queries header HABEAS_INFRINGER eval:check_rbl_swe('hil', 'sa-hil.habeas.com.') describe HABEAS_INFRINGER Has Habeas warrant mark and on Infringer List tflags HABEAS_INFRINGER net # sa-hul.habeas.com for SpamAssassin queries # hul.habeas.com for other queries header HABEAS_USER eval:check_rbl_swe('hul', 'sa-hul.habeas.com.') describe HABEAS_USER Has Habeas warrant mark and on User List tflags HABEAS_USER net nice header RCVD_IN_BSP_TRUSTED eval:check_rbl_txt('bsp-firsttrusted', 'sa-trusted.bondedsender.org.') describe RCVD_IN_BSP_TRUSTED Sender is in Bonded Sender Program (trusted relay) tflags RCVD_IN_BSP_TRUSTED net nice header RCVD_IN_BSP_OTHER eval:check_rbl_txt('bsp-untrusted', 'sa-other.bondedsender.org.') describe RCVD_IN_BSP_OTHER Sender is in Bonded Sender Program (other relay) tflags RCVD_IN_BSP_OTHER net nice # SenderBase information # these are experimental example rules # sa.senderbase.org for SpamAssassin queries # query.senderbase.org for other queries header __SENDERBASE eval:check_rbl_txt('sb', 'sa.senderbase.org.') tflags __SENDERBASE net # S23 = domain daily magnitude, S25 = date of first message from this domain header SB_NEW_BULK eval:check_rbl_sub('sb', 'sb:S23 > 6.2 && (time - S25 < 120*86400)') describe SB_NEW_BULK Sender domain is new and very high volume tflags SB_NEW_BULK net # S5 = category, S40 = IP daily magnitude, S41 = IP monthly magnitude # note: accounting for rounding, "> 0.3" means at least a 59% volume spike header SB_NSP_VOLUME_SPIKE eval:check_rbl_sub('sb', 'sb:S5 =~ /NSP/ && S41 > 3.8 && S40 - S41 > 0.3') describe SB_NSP_VOLUME_SPIKE Sender IP hosted at NSP has a volume spike tflags SB_NSP_VOLUME_SPIKE net # --------------------------------------------------------------------------- # NOTE: donation tests, see README file for details header RCVD_IN_BL_SPAMCOP_NET eval:check_rbl_txt('spamcop', 'bl.spamcop.net.') describe RCVD_IN_BL_SPAMCOP_NET Received via a relay in bl.spamcop.net tflags RCVD_IN_BL_SPAMCOP_NET net header RCVD_IN_RSL eval:check_rbl_txt('rsl', 'relays.visi.com.') describe RCVD_IN_RSL Received via a relay in RSL tflags RCVD_IN_RSL net # --------------------------------------------------------------------------- # NOTE: commercial tests, see README file for details header RCVD_IN_MAPS_RBL eval:check_rbl('rbl', 'blackholes.mail-abuse.org.') describe RCVD_IN_MAPS_RBL Relay in RBL, http://www.mail-abuse.org/rbl/ tflags RCVD_IN_MAPS_RBL net header RCVD_IN_MAPS_DUL eval:check_rbl('dialup-notfirsthop', 'dialups.mail-abuse.org.') describe RCVD_IN_MAPS_DUL Relay in DUL, http://www.mail-abuse.org/dul/ tflags RCVD_IN_MAPS_DUL net header RCVD_IN_MAPS_RSS eval:check_rbl('rss', 'relays.mail-abuse.org.') describe RCVD_IN_MAPS_RSS Relay in RSS, http://www.mail-abuse.org/rss/ tflags RCVD_IN_MAPS_RSS net header RCVD_IN_MAPS_NML eval:check_rbl('nml', 'nonconfirm.mail-abuse.org.') describe RCVD_IN_MAPS_NML Relay in NML, http://www.mail-abuse.org/nml/ tflags RCVD_IN_MAPS_NML net # if you're subscribed to RBL+, then comment out the above rules (just the # "header" lines, not the "describe" or "tflags" lines) and uncomment the # below lines #header RCVD_IN_MAPS_RBL eval:check_rbl('rblplus', 'rbl-plus.mail-abuse.org.', '1') #header RCVD_IN_MAPS_DUL eval:check_rbl('rblplus-notfirsthop', 'rbl-plus.mail-abuse.org.', '2') #header RCVD_IN_MAPS_RSS eval:check_rbl_sub('rblplus', '4') #header RCVD_IN_MAPS_OPS eval:check_rbl_sub('rblplus', '8') #describe RCVD_IN_MAPS_OPS Relay in OPS, http://www.mail-abuse.org/ops/ #tflags RCVD_IN_MAPS_OPS net # --------------------------------------------------------------------------- # Other DNS tests header NO_DNS_FOR_FROM eval:check_dns_sender() describe NO_DNS_FOR_FROM Envelope sender has no MX or A DNS records tflags NO_DNS_FOR_FROM net