# SpamAssassin rules file: known spam mailers
#
# Sometimes these leave 'sent by mailername' fingerprints in the
# headers, which provide a nice way for us to catch them.
#
# 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.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of either the Artistic License or the GNU General
# Public License as published by the Free Software Foundation; either
# version 1 of the License, or (at your option) any later version.
#
# See the file "License" in the top level of the SpamAssassin source
# distribution for more details.
#
###########################################################################

header RATWARE_EGROUPS		X-Mailer =~ /eGroups Message Poster/
describe RATWARE_EGROUPS	Bulk email fingerprint (eGroups) found
header RATWARE_HASH_2		X-Mailer =~ /^[A-Za-z0-9\._]{16,}$/
describe RATWARE_HASH_2		Bulk email fingerprint (hash 2) found
header RATWARE_HASH_2_V2	X-Mailer =~ /^[A-Za-z0-9\._]{14,}$/
describe RATWARE_HASH_2_V2	Bulk email fingerprint (hash 2 v2) found
header RATWARE_JPFREE		X-Mailer =~ /jpfree Group Mail Express/
describe RATWARE_JPFREE		Bulk email fingerprint (jpfree) found
header RATWARE_VC_IPA		X-Mailer =~ /2\.0-b55-VC_IPA/
describe RATWARE_VC_IPA		Bulk email fingerprint (VC_IPA) found

# Note that the tests which look at the "ALL" pseudoheader are slower than
# the specific header.
header RATWARE_GR		X-Mailer =~ /GRMessageQueue/
describe RATWARE_GR		Bulk email fingerprint (GRMessageQueue) found
header RATWARE_OE_PI		X-Mailer =~ /Out[Ll]ook Express 3\.14159/
describe RATWARE_OE_PI		X-Mailer contains "OutLook Express 3.14159"
# 100% overlap with X-Stormpost-To: header, but seems wise to leave it in
header RATWARE_STORM		X-Mailer =~ /StormPost/
describe RATWARE_STORM		Bulk email fingerprint (StormPost) found
uri RATWARE_STORM_URI		m{http://\S+/sp/t\.pl\?id=\d+:\d+}i
describe RATWARE_STORM_URI	Bulk email fingerprint (StormPost) found
header RATWARE_JIXING		X-Mailer =~ /JiXing .{0,30}Design By JohnnieHuang/
describe RATWARE_JIXING		Bulk email fingerprint (JiXing) found
header RATWARE_SCREWUP_1	X-Mailer =~ /^X-Mailer: /
describe RATWARE_SCREWUP_1	Bulk email fingerprint (screwup 1) found
header RATWARE_MMAILER		X-Mailer =~ /MMailer v3\.0/
describe RATWARE_MMAILER	Bulk email fingerprint (MMailer) found in headers
header RATWARE_OE_MALFORMED	X-Mailer =~ /^Microsoft Outlook Express \d(?:\.\d+){3} \w+$/
describe RATWARE_OE_MALFORMED	X-Mailer has malformed Outlook Express version
header RATWARE_EVAMAIL		X-Mailer =~ /EVAMAIL/
describe RATWARE_EVAMAIL	Bulk email fingerprint (EVAMAIL) found
header RATWARE_SCREWUP_2	X-Mailer =~ /^: /
describe RATWARE_SCREWUP_2	Bulk email fingerprint (screwup 2) found
header RATWARE_IMKTG		ALL =~ /Internet Marketing/
describe RATWARE_IMKTG		Bulk email fingerprint (IMktg) found
header RATWARE_XMAILER		X-Mailer =~ /{%xmailer%}/
describe RATWARE_XMAILER	Bulk email fingerprint (xmailer tag) found
header RATWARE_POWERC		X-Mailer =~ /PowerCampaign/
describe RATWARE_POWERC		Bulk email fingerprint (PowerCampaign) found
header RATWARE_DIFFOND		ALL =~ /DiffondiCool/
describe RATWARE_DIFFOND	Bulk email fingerprint (DiffondiCool) found
header RATWARE_CHARSET		X-Mailer =~ /\Qcharset(89)\E/
describe RATWARE_CHARSET	Bulk email fingerprint (charset) found
header RATWARE_CHARSET_V2	X-Mailer =~ /^normal \W \W\s*charset.*=\"/
describe RATWARE_CHARSET_V2 	Bulk email fingerprint (charset 2) found
header RATWARE_CARETOP		X-Mailer =~ /Caretop 2604/
describe RATWARE_CARETOP	Bulk email fingerprint (Caretop) found
header RATWARE_LC_OUTLOOK	X-Mailer =~ /^outlook$/
describe RATWARE_LC_OUTLOOK	Bulk email fingerprint ("outlook") found
header RATWARE_EMWAC		Received =~ /EMWAC SMTPRS/
describe RATWARE_EMWAC		Bulk email fingerprint ("EMWAC SMTPRS") found
header RATWARE_BANG_HASH	X-Mailer =~ /!.*\#.*\*/
describe RATWARE_BANG_HASH 	Bulk email fingerprint (bang-hash) found
header RATWARE_FLOAT		X-Mailer =~ /^\d\.\d\d/
describe RATWARE_FLOAT 		Bulk email fingerprint (float) found
header RATWARE_DIRECT_EMAIL	X-Mailer =~ /Direct Email/i
describe RATWARE_DIRECT_EMAIL	Bulk email fingerprint (Direct Email) found
header RATWARE_RCVD_LC_ESMTP	Received =~ /^from (?:(?:unknown|\d+\.\d+\.\d+\.\d+) \(\S+\)|\[\d+\.\d+\.\d+\.\d+\]) by \S+ with (?:esmtp|local|smtp); /m
describe RATWARE_RCVD_LC_ESMTP	Bulk email fingerprint ('esmtp' Received) found
header RATWARE_RCVD_BONUS_SPC	Received =~ /\) by  [a-zA-Z0-9]/
describe RATWARE_RCVD_BONUS_SPC	Bulk email fingerprint (bonus space) found

###########################################################################
# Now, detect forgeries of real MUAs

# Dec 17 2002 jm: this means "message ID is either too old or has been
# rewritten by a gateway".  Made into an eval test since meta tests cannot
# (yet) chain from other meta tests.
header __UNUSABLE_MSGID		eval:check_messageid_not_usable()

# forgeries of MSN Explorer.
header __HAS_XOAT		X-Originalarrivaltime =~ /FILETIME/
header __HAS_XOIP		X-Originating-Ip =~ /^\[/
meta FORGED_MUA_MSN		(__USER_AGENT_MSN && (!__HAS_XOAT || !__HAS_XOIP))
describe FORGED_MUA_MSN		Forged mail pretending to be from MSN

# AOL
header __AOL_MUA		X-Mailer =~ /\bAOL\b/

# Internet Mail Service
header __IMS_MUA		X-Mailer =~ /Internet Mail Service/
header __IMS_MSGID		MESSAGEID =~ /^<[A-F\d]{36,40}\@\S+>$/m
meta FORGED_MUA_IMS		(__IMS_MUA && !__UNUSABLE_MSGID && !__IMS_MSGID)
describe FORGED_MUA_IMS		Forged mail pretending to be from IMS

# Outlook
# Note: this uses __IMS_MSGID from above
header __OUTLOOK_MUA		X-Mailer =~ /\bOutlook\b(?! IMO| Express (?:for )?Mac|, Build 11\.0\.)/
header __OUTLOOK_MSGID_1	MESSAGEID =~ /^<[0-9a-f]{12}\$[0-9a-f]{8}\$[0-9a-f]{8}\@\S+>$/m
# See bug 1488 for details
header __OUTLOOK_MSGID_2	MESSAGEID =~ /^<[A-Za-z0-9-]{7}[A-Za-z0-9]{20}\@hotmail\.com>$/m
header __OUTLOOK_MSGID_3	MESSAGEID =~ /^<\!\~\!/m
meta FORGED_MUA_OUTLOOK		(__OUTLOOK_MUA && !__UNUSABLE_MSGID && !(__OUTLOOK_MSGID_1 || __OUTLOOK_MSGID_2 || __OUTLOOK_MSGID_3 || __IMS_MSGID))
describe FORGED_MUA_OUTLOOK	Forged mail pretending to be from MS Outlook

# Outlook IMO (Internet Mail Only)
header __OIMO_MUA		X-Mailer =~ /Outlook IMO/
header __OIMO_MSGID		MESSAGEID =~ /^<[A-P]{26}A[AB]\.[-_\w.]+\@\S+>$/m
meta FORGED_MUA_OIMO		(__OIMO_MUA && !__OIMO_MSGID && !__UNUSABLE_MSGID)
describe FORGED_MUA_OIMO	Forged mail pretending to be from MS Outlook IMO

# QUALCOMM Eudora
# Note: uses X_LOOP and X_MAILING_LIST as subrules
header __EUDORA_MUA		X-Mailer =~ /\b(?:QUALCOMM|Eudora)\b/
header __MAC_EUDORA_MUA		X-Mailer =~ /Eudora for (?:Macintosh|Mac OS X)/
header __PALM_EUDORA_MUA	X-Mailer =~ /^Eudora \d+.\d+ for PalmOS\b/
header __OLD_EUDORA1		X-Mailer =~ /Eudora\s+Pro\s+Version\s+[1-4]\.\b/
header __OLD_EUDORA2		X-Mailer =~ /\bEudora\s+(?:(?:Pro|Light)\s+)?Version\s+[1-4]\.\b/
header __ANY_QUALCOMM_MUA	X-Mailer =~ /\bQUALCOMM\b/
header __EUDORA_MSGID		MESSAGEID =~ /^<(?:\d\d?\.){4,5}\d{14}\.[a-f0-9]{8}\@\S+>$/m
header __HAS_X_LOOP		exists:X-Loop
header __HAS_X_MAILING_LIST	exists:X-Mailing-List
meta FORGED_MUA_EUDORA		(__EUDORA_MUA && !__EUDORA_MSGID && !__UNUSABLE_MSGID && !__HAS_X_LOOP && !__HAS_X_MAILING_LIST && !__MAC_EUDORA_MUA && !__PALM_EUDORA_MUA && !__OLD_EUDORA1 && !(__OLD_EUDORA2 && !__ANY_QUALCOMM_MUA))
describe FORGED_MUA_EUDORA	Forged mail pretending to be from Eudora

# Mar 26 2003 jm: AOL MUAs add a Received line, and do not use "real names" in
# From or To headers, as far as I can see, quinlan: also see bug 1426
header __AOL_FROM		From:addr =~ /\@aol\.com$/i
meta FORGED_MUA_AOL_FROM	(__AOL_MUA && !__AOL_FROM)
describe FORGED_MUA_AOL_FROM	Forged mail pretending to be from AOL (by From)

# From private mail with developers.  Some top tips here!
header __THEBAT_MUA		X-Mailer =~ /The Bat!/
header __BAT_MSGID		MESSAGEID =~ /^<\d{2,12}\.\d{14}\@\S+>$/m
header __CTYPE_CHARSET_QUOTED	Content-Type =~ /charset=\"/i
header __CTYPE_HAS_BOUNDARY	Content-Type =~ /boundary/i
header __BAT_BOUNDARY		Content-Type =~ /boundary=\"?-{10}/
meta FORGED_MUA_THEBAT		(__THEBAT_MUA && !__UNUSABLE_MSGID && !__BAT_MSGID)
meta FORGED_MUA_THEBAT_CS	(__THEBAT_MUA && __CTYPE_CHARSET_QUOTED)
meta FORGED_MUA_THEBAT_BOUN	(__THEBAT_MUA && __CTYPE_HAS_BOUNDARY && !__BAT_BOUNDARY)
describe FORGED_MUA_THEBAT	Mail pretending to be from The Bat! (mid)
describe FORGED_MUA_THEBAT_CS	Mail pretending to be from The Bat! (charset)
describe FORGED_MUA_THEBAT_BOUN Mail pretending to be from The Bat! (boundary)

meta FORGED_OUTLOOK_HTML	(__OUTLOOK_MUA && MIME_HTML_ONLY)
describe FORGED_OUTLOOK_HTML	Outlook can't send HTML message only

meta FORGED_AOL_HTML		(__AOL_MUA && MIME_HTML_ONLY)
describe FORGED_AOL_HTML	AOL can't send HTML message only

meta FORGED_IMS_HTML		(__IMS_MUA && MIME_HTML_ONLY)
describe FORGED_IMS_HTML	IMS can't send HTML message only

meta FORGED_THEBAT_HTML		(__THEBAT_MUA && MIME_HTML_ONLY)
describe FORGED_THEBAT_HTML	The Bat! can't send HTML message only

# bug 1561
# stronger version of USER_AGENT_APPLEMAIL
# Apple Mail doesn't send text/html at all (unless it's an attachment)
# It'll send text/plain, or multipart/alternative with text/plain and
# text/enriched parts (boundary of "Apple-Mail-\d--\d+").  It can, however,
# send a multipart/mixed with a single text/html attachment, so don't use
# MIME_HTML_ONLY.
# perhaps limit CTYPE to "text/plain", "multipart/alternative" with
# "text/plain" and "text/enhanced", or "multipart/mixed"?
header __X_MAILER_APPLEMAIL	X-Mailer =~ /^Apple Mail \(\d\.\d+\)$/
header __MSGID_APPLEMAIL        Message-Id =~ /^<[0-9A-F]{8}-(?:[0-9A-F]{4}-){3}[0-9A-F]{12}\@\S+>$/
header __MIME_VERSION_APPLEMAIL	Mime-Version =~ /^1\.0 \(Apple Message framework v\d+\)$/
meta __USER_AGENT_APPLEMAIL	!__CTYPE_HTML && __X_MAILER_APPLEMAIL && (__MSGID_APPLEMAIL || __MIME_VERSION_APPLEMAIL)
meta FORGED_MUA_APPLEMAIL	(__X_MAILER_APPLEMAIL && !__UNUSABLE_MSGID && !__USER_AGENT_APPLEMAIL)
describe FORGED_MUA_APPLEMAIL	AppleMail can't send HTML message only

# 2003-02-23: quinlan
# some useful meta rule sub-elements
body __MIME_HTML		eval:check_for_mime_html()
header __CTYPE_HTML		Content-Type =~ /text\/html/i
header __ANY_AOL_MUA		X-Mailer =~ /^AOL\b/
header __ANY_IMS_MUA		X-Mailer =~ /^Internet Mail Service\b/
header __ANY_OUTLOOK_MUA	X-Mailer =~ /^Microsoft Outlook\b/
body __TAG_EXISTS_BODY		eval:html_tag_exists('body')
body __TAG_EXISTS_HEAD		eval:html_tag_exists('head')
body __TAG_EXISTS_HTML		eval:html_tag_exists('html')
body __TAG_EXISTS_META		eval:html_tag_exists('meta')

meta FORGED_QUALCOMM_TAGS	(__ANY_QUALCOMM_MUA && __MIME_HTML && !__TAG_EXISTS_HTML)
describe FORGED_QUALCOMM_TAGS	QUALCOMM mailers can't send HTML in this format

meta FORGED_AOL_TAGS		(__ANY_AOL_MUA && __MIME_HTML && !__TAG_EXISTS_HTML)
describe FORGED_AOL_TAGS	AOL mailers can't send HTML in this format

meta FORGED_IMS_TAGS		(__ANY_IMS_MUA && __MIME_HTML && !(__TAG_EXISTS_HTML && __TAG_EXISTS_HEAD && __TAG_EXISTS_META && __TAG_EXISTS_BODY))
describe FORGED_IMS_TAGS	IMS mailers can't send HTML in this format

meta FORGED_OUTLOOK_TAGS	(__ANY_OUTLOOK_MUA && __MIME_HTML && !(__TAG_EXISTS_HTML && __TAG_EXISTS_HEAD && __TAG_EXISTS_META && __TAG_EXISTS_BODY))
describe FORGED_OUTLOOK_TAGS	Outlook can't send HTML in this format

header RATWARE_BAD_REFS		References =~ /^[^<]\S+\$\S+\@\S+[^>]$/
describe RATWARE_BAD_REFS	References header has bad format

# http://marc.theaimsgroup.com/?l=spamassassin-talk&m=105203882531351&w=2
header RATWARE_X_SCANNER	X-Scanner =~ /^: /
describe RATWARE_X_SCANNER	Has X-Scanner header

header __RATWARE_EXISCAN	X-Scanner =~ /exiscan/
header __RATWARE_ANTIABUSE	X-AntiAbuse =~ /Originator.Caller UID.GID - \[\d \d\] \/ \[\d \d\]/
meta RATWARE_EXISCAN_FORGED	(__RATWARE_EXISCAN && __RATWARE_ANTIABUSE && __HAS_MSMAIL_PRI)
describe RATWARE_EXISCAN_FORGED	Headers indicate forged Exiscan message