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SpamBayes

Last week, Michael Morrissey blogged about the SpamBayes Outlook plug-in, saying it had dramatically reduced his spam problem. Although I run SpamAssassin, it only catches part of the spam coming to me, and my hosting setup is such that I can't change the default tolerance level to something stricter. So I decided to give SpamBayes a try. After two days of training, here are three days of results:

Total spam messages: 71
Spam messages caught by SpamAssassin: 30
Remaining spam messages caught by SpamBayes: 32
Remaining spam messages uncaught by either SpamAssassin or SpamBayes: 9
SpamAssassin false positives: 0
SpamBayes false positives: 1

So instead of 71 pieces of spam with no filtering, or 41 with SpamAssassin alone, I received only 9, or 3 spam messages per day. I'd rather get it down to 0, but I can live with that. Thanks, Michael!

As a Bayesian filter, theoretically, SpamBayes' performance should continue to improve. If it changes dramatically over time, I'll report on it here.

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Broadcast Builder -- let's you build RSS feeds, might be fun. Argali -- app for searching multiple YP sources at one Rss in My Yahoo -- I've seen several pointers to this, kind of cool Auth based on typing patterns... [Read More]

Comments

Here in the U.K., Personal Computer World just did a major review of anti-spam software. SpamBayes, Spam Assassin, InBoxer (which is based on SpamBayes) and 7 others were compared. They tested on over 1000 messages. The results:

PERCENTAGE OF SPAM KEPT FROM INBOX:

SpamBayes 97.94%
InBoxer 97.07%
Spam Assassin 93.72%

TOTAL INTERVENTIONS REQUIRED (a misfiled message either false-positive or false-negative):

InBoxer 37
SpamBayes 80
Spam Assassin 80

They gave both Editor's Choice and Best Buy awards to InBoxer (http://www.inboxer.com) in large part because it worked better than SpamBayes and Spam Assassin out of the box. SpamBayes was given the great value award.

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