Guide Review - POPFile
POPFile is a general purpose email classification tool that can do exactly that — automatically. Train it with your own decisions, and POPFile learns the characteristics of these emails, sorting them for you in the future.
Designed as a POP proxy, POPFile works transparently with almost any email client. An IMAP module sorts messages to appropriate folders right at the server. You can even use POPFile to categorize NNTP news or install it as an SMTP proxy right before your mail server to filter all incoming mail.
While POPFile has a nice web interface to correct decisions and configure settings even from another computer, classifying emails directly in the email client might be more natural and intuitive. If you use IMAP, you can do this by simply moving mail to the appropriate folder and POPFile will pick up the new training data.
But even without such convenience, POPFile's Bayesian analysis is a great help sorting your mail, and avoiding spam, though.
(Updated September 2011)
