Hello,
I've got a few mails that were tagged with FORGED_MUA_OIMO
Seems those email were sent from Sympatico's Webmail
The rule that is triggering the score is located in 20_ratware.cf
Mails are scanned by two different servers on my setup, 1st is a Qmail+SA
setup, then an MDaemon server, that also uses SpamAssassin
Both are running 3.2.5 and rules are updated daily
Here's a log from my qmail/SpamAssassin server:
Tue, 26 Jan 2010 21:56:42 EST:25054: +++ starting debugging for process
25054 (ppid=25052) by uid=501
Tue, 26 Jan 2010 21:56:42 EST:25054: normalize_string: finished normalizing
in 5.6e-05 secs
Tue, 26 Jan 2010 21:56:42 EST:25054: w_c: Total time between DATA command
and "." was 0.004887 secs
Tue, 26 Jan 2010 21:56:42 EST:25054: from='" Michel Desforges"
<mycusto...@sympatico.ca>',
subj='TR:_Scandinave_Spa_élu_par_Organic_Spa_Magazine', via
SMTP from blu0-omc2-s3.blu0.hotmail.com
Tue, 26 Jan 2010 21:56:42 EST:25054: clamdscan: finished scan in 0.033096
secs
Tue, 26 Jan 2010 21:56:46 EST:25054: SA: REPORT hits = 0.4/5.0
0.0 HTML_MESSAGE BODY: HTML inclus dans le message
-2.6 BAYES_00 BODY: L'algorithme Bayésien a évalué la
probabilité de spam
entre 0 et 1%
[score: 0.0000]
2.2 FORGED_MUA_OIMO Message falsifié prétendant provenir du
logiciel MS
Outlook IMO
0.2 SARE_SUB_ENC_UTF8 Message uses character set often used in spam
0.8 MSGID_FROM_MTA_HEADER Message-ID ajouté par un relais
-0.1 AWL AWL: From: address is in the auto white-list
-------------------- Fin de Rapport SpamAssassin ---------------------
Tue, 26 Jan 2010 21:56:46 EST:25054: SA: finished scan in 4.380904 secs -
hits=0.4/5.0
Tue, 26 Jan 2010 21:56:46 EST:25054: p_s: finished scan in 0.010061 secs
Tue, 26 Jan 2010 21:56:46 EST:25054: ini_sc: finished scan of
"/var/spool/qmailscan/tmp/Pluton.cybergeneration.com126456100278325054"...
Tue, 26 Jan 2010 21:56:46 EST:25054: ------ Process 25054 finished. Total of
4.581216 secs
And here are the headers, once the email got scanned by the other SA
instance:
X-Spam-Processed: mail.cybergeneration.com, Tue, 26 Jan 2010 21:56:48 -0500
Return-path: <mycusto...@sympatico.ca>
X-Spam-Flag: YES
X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10)
X-Spam-Level: *****
X-Spam-Status: Yes, score=5.1 required=5.0
tests=FORGED_MUA_OIMO,HTML_MESSAGE,
MSGID_FROM_MTA_HEADER shortcircuit=no autolearn=disabled
version=3.2.5
X-Spam-Report:
* 0.0 HTML_MESSAGE BODY: HTML included in message
* 1.5 MSGID_FROM_MTA_HEADER Message-Id was added by a relay
* 3.6 FORGED_MUA_OIMO Forged mail pretending to be from MS Outlook
IMO
Received: from Pluton.cybergeneration.com ([10.0.0.11])
by mail.cybergeneration.com (mail.cybergeneration.com)
(MDaemon PRO v10.1.2)
with ESMTP id md50028010368.msg
for <mycusto...@mydomain.com>; Tue, 26 Jan 2010 21:56:48 -0500
X-Rcpt-To: mycusto...@mydomain.com
X-MDRcpt-To: mycusto...@mydomain.com
X-MDRemoteIP: 10.0.0.11
X-Return-Path: mycusto...@sympatico.ca
X-Envelope-From: mycusto...@sympatico.ca
X-MDaemon-Deliver-To: mycusto...@mydomain.com
Received: (qmail 25067 invoked by uid 509); 27 Jan 2010 02:56:46 -0000
Received: from blu0-omc2-s3.blu0.hotmail.com by Pluton.cybergeneration.com
(envelope-from <mycusto...@sympatico.ca>, uid 501) with qmail-scanner-2.02$
(clamdscan: 0.95.3/9959. spamassassin: 3.2.5. perlscan: 2.02st.
Clear:RC:0(65.55.111.78):SA:0(0.4/5.0):.
Processed in 4.437037 secs); 27 Jan 2010 02:56:46 -0000
Received: from blu0-omc2-s3.blu0.hotmail.com (65.55.111.78)
by Pluton.cybergeneration.com with SMTP; 27 Jan 2010 02:56:42 -0000
Received: from BLU0-SMTP95 ([65.55.111.73]) by blu0-omc2-s3.blu0.hotmail.com
with Microsoft SMTPSVC(6.0.3790.3959);
Tue, 26 Jan 2010 18:56:41 -0800
X-Originating-IP: [65.94.81.238]
X-Originating-Email: [mycusto...@sympatico.ca]
Message-ID: <blu0-smtp955ed0a4629d69bd24fcea9a...@phx.gbl>
Received: from michelako57wtk ([65.94.81.238]) by
BLU0-SMTP95.blu0.hotmail.com over TLS secured channel with Microsoft
SMTPSVC(6.0.3790.3959);
Tue, 26 Jan 2010 18:56:40 -0800
From: " Michel Desforges" <mycusto...@sympatico.ca>
To: <mycusto...@mydomain.com>
Subject: [***SPAM*** Score/Req: 05.1/5.0]
=?utf-8?Q?TR:_Scandinave_Spa_=C3=A9lu_par_Organic_Spa_Magazine?=
Date: Tue, 26 Jan 2010 21:56:41 -0500
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0000_01CA9ED2.717F2840"
X-Priority: 3 (Normal)
X-MSMail-Priority: Normal
X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2911.0)
Importance: Normal
X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579
X-OriginalArrivalTime: 27 Jan 2010 02:56:41.0033 (UTC)
FILETIME=[59E0C390:01CA9EFC]
X-Spam-Prev-Subject:
=?utf-8?Q?TR:_Scandinave_Spa_=C3=A9lu_par_Organic_Spa_Magazine?=
So basically, both instances tag the mail with FORGED_MUA_OIMO
What's in the FORGED_MUA_OIMO rule (20_ratware.cf):
# Outlook IMO (Internet Mail Only)
header __OIMO_MUA X-Mailer =~ /Outlook IMO/
header __OIMO_MSGID MESSAGEID =~
/^<[a-p]{26}a[abc]\.[-\w....@\s+>$/m
meta FORGED_MUA_OIMO (__OIMO_MUA && !__OIMO_MSGID && !__OE_MSGID_2
&& !__UNUSABLE_MSGID)
describe FORGED_MUA_OIMO Forged mail pretending to be from MS Outlook
IMO
Any idea how to fix that?
Thank you!
