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Legacy Forums => General Discussion (Legacy) => Topic started by: Michiel on November 15, 2005, 11:41:57 AM

Title: SpamAssassin performance deteriorating?
Post by: Michiel on November 15, 2005, 11:41:57 AM

I have the impression that the last couple of weeks there is a considerable increase in spam messages that slip through SA (3.1.0). Right now I get about 30 messages/day that are not caught by SA and they all seem to be at a spamlevel just below 5. Maybe the spammers are optimizing their stuff for SA?

Anyone else experiencing the same thing?

Michiel

Title: SpamAssassin performance deteriorating?
Post by: mdo on November 15, 2005, 06:50:53 PM

Hi Michiel

we see the same happening here over the last few weeks.

It seems to confuse spamassassin completely (see the score of -1.7! and autolearn=ham!???)

X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on tga1.tw.co.nz
X-Spam-Status: No, score=-1.7 required=5.0 tests=ALL_TRUSTED,BAYES_50,
   HTML_90_100,HTML_MESSAGE autolearn=ham version=3.1.0
X-Spam-Level:
X-Scanned-By: amavis-ng-0.1.6 powered by CLAMD on tw.co.nz
Received: from aku.ac.ir ([219.130.66.25])
  by tga1.tw.co.nz ([x.x.x.x])
  with SMTP via TCP; 14 Nov 2005 12:33:28 -0000
Message-ID: <003f01c5e917$ac0d4e80$723fa8c0@defeasance>
From: "Photios Bracamonte" <bracamon@aku.ac.ir>
To: "Senka Jaggers" <michael@tw.co.nz>
Subject: Charles V-take
Date: Mon, 14 Nov 2005 07:33:53 -0500
MIME-Version: 1.0

Michael

Title: SpamAssassin performance deteriorating?
Post by: kruhm on November 19, 2005, 11:25:00 PM

i'm finding the same thing.

I uninstalled and reinstalled SA. I think it helped a little but still the SA doesn't seem to be scoring correctly.

Title: SpamAssassin performance deteriorating?
Post by: kruhm on November 19, 2005, 11:55:32 PM

::empty::

Title: SpamAssassin performance deteriorating?
Post by: Brenno on November 21, 2005, 03:37:01 PM

I, too, have noticed this.  My users are reporting a great amount of Spam "beating" the filters - some of it blatantly Spam and quite disturbing in nature.

Slightly off topic, but does anyone know of a way to apply global procmail rules?  I know that there is a dungog contrib for this, but the $249US tag is out of my budget :(  We get a lot of Spam with a common subject line that would be nice to block globally.

Title: SpamAssassin performance deteriorating?
Post by: raem on November 21, 2005, 04:09:23 PM

Brenno

Modify to suit.

http://forums.contribs.org/index.php?topic=27397.0

You 'll find the rules mentioned here:

http://mirror.contribs.org/smeserver/contribs//rmitchell/smeserver/contribs/spamassassin/rules-sober-worm/