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Best Free Spam Filter for Experienced Users

Best Free Spam Filter for Experienced Users
source : http://www.techsupportalert.com

There are many different spam filters available employing lots of different techniques. In my experience "learning" spam filters that use the Bayesian statistical approach out-perform most other types of filters I've tried. Not only are they better at detecting spam they are also less liable to classify your real mail as spam. This effectiveness takes a little time to develop as the filter has to be trained to recognize your spam from your normal mail. It takes a week or so before results start becoming accurate and best results may take a month or more. POPFile, a free, open source spam filter, was one of the first Bayesian filters and is still one of the best. It works as a proxy mail server so that means that it can be used with any POP email client. Setup is reasonably straightforward for experienced users but beginners may be better off with Mailwasher.

If you use Outlook there are several excellent free Bayesian spam filters available including SpamBayes and K9. Both are simple to install though, like all statistical filters, they need to go through a training phase before they reach full effectiveness.

http://popfile.sourceforge.net/old_index.html (4.3MB)
http://spambayes.sourceforge.net/ (3.6MB)
http://www.keir.net/k9.html (113KB)

Comments

Unknown said…
SpamBully is also a decent Bayesian spam filter
February 17, 2007 at 5:39 AM
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