I liked the previous version, but version 4 is awesome. They have added a new filter mechanism and learning ability that is working perfectly. Proviously, it missed about 20%. Now, after one week, it is only missing about 5%. No false positives either. They have also added more customization that makes it even easier to tweak the settings.

To give some contet, I receive over 300 spams a day. I have had this account several years and somehow got on a boatload of spammer lists.

This program remains the only I have found that works on IMAP accounts. Best yet, it works perfectly now with 4.0.

Although it took awhile to convert all my existing settings and spammer database, the upgrade installed seamlessly.

I can't recommend more highly.