From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mta1.math.wisc.edu (mta1.math.wisc.edu [144.92.166.194]) by speech.braille.uwo.ca (Postfix) with ESMTP id 77ABA102E6 for ; Fri, 22 Jan 2010 13:36:01 -0500 (EST) X-Virus-Scanned: Debian amavisd-new at mta2.math.wisc.edu Received: from mta1.math.wisc.edu ([127.0.0.1]) by localhost (mta1.math.wisc.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ZRbDJOVwrI4b for ; Fri, 22 Jan 2010 12:36:00 -0600 (CST) Received: from mta1.math.wisc.edu (localhost.localdomain [127.0.0.1]) by mta1.math.wisc.edu (Postfix) with ESMTP id 9EEE9380027 for ; Fri, 22 Jan 2010 12:36:00 -0600 (CST) Received: from ulam.math.wisc.edu (ulam.math.wisc.edu [144.92.166.245]) by mta1.math.wisc.edu (Postfix) with ESMTP for ; Fri, 22 Jan 2010 12:36:00 -0600 (CST) Received: from vv507j (vv507j.math.wisc.edu [144.92.166.75]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by ulam.math.wisc.edu (Postfix) with ESMTPSA id AF1E52BE74 for ; Fri, 22 Jan 2010 12:32:05 -0600 (CST) Message-ID: From: "John G. Heim" To: "Speakup is a screen review system for Linux." References: <20100121003259.GA10533@romuald.net.eu.org><20100121195602.GA21121@romuald.net.eu.org> <20100121224101.GB6079@rx.localhost> Subject: Re: Spam protection strategies, was:x ot, spamassassin question Date: Fri, 22 Jan 2010 12:32:05 -0600 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-BeenThere: speakup@braille.uwo.ca X-Mailman-Version: 2.1.12 Precedence: list Reply-To: "Speakup is a screen review system for Linux." List-Id: "Speakup is a screen review system for Linux." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jan 2010 18:36:01 -0000 From: "Chuck Hallenbeck" > Congratulations on taming your spamassassin configuration. I just > finished installing a different spam protection here, much easier, and > with a different strategy. It uses vipul's "razor" and integrates > nicely with procmailrc and mutt. Razor is a collaborative spam > protection scheme, and works a lot like "denyhosts" in that false > positives and false negatives are reported to a distributed set of > hosts one by one as they are encountered, and each email the user > checks for spam is tested against the collective data base. It is the > consensus of razor users that distinguishes between ham and spam, and > that consensus is constantly being updated as the FP's and FN's are > reported. Also, each user acquires a "trust level" as his reports are > made, based on the soundness of his judgment in making the report. Spamassassin can be configuredt to use razor. We use bayesian rules, some downloaded rules, my own custom rules, razor and dcc (Distributed Checksom Clearinghouse) in determining the spam score for a message. I have not seen a false positive in my own mail and no user has reported a false positive for about 2 years. And I probably catch about 98% of spam.