SpamBayes 1.0.4 - Free Spam Filter

SpamBayes employs sophisticated analysis using Bayesian statistics to rid your email Inbox of junk mail precisely and in an effortless manner.
It would be great if SpamBayes' classifying power could be used to further categorize and prioritize good messages, and plug-ins for programs other than Outlook and Mozilla Thunderbird would be welcome.

Pros

Cons

Massive experimentation and testing went into constructing a robust and highly efficient Bayesian spam filter. And efficient SpamBayes is.

After a just bit of training, SpamBayes detects junk mail reliably. With IMAP accounts, it moves the junk to a special folder automatically. Acting as a POP proxy in between your email program and the mail server, SpamBayes adds a marker that lets the email program filter the junk further.

To correct error, you can use SpamBayes's web interface or forward the messages to a training address with POP accounts and just move to distinct folders with IMAP. Outlook and Mozilla Thunderbird users have it particularly comfortable, too: SpamBayes plugs into these email programs for easy setup and training.

The option to put emails whose spam probability is somewhere between good mail and junk in a special folder make it easy to continue training and correcting (though that will not be necessary often) SpamBayes' decisions. Forget about the other, non-incremental training mode, though.

If you're curious what spam is made of, SpamBayes can show you a detailed analysis of a message's overall spam probably and its individual word counts.

It would be great of SpamBayes wonderful email classifying talent could be harvested for prioritizing and categorizing good mail further. Direct support for more email programs would be nice, too.