A comprehensive "Install'n forget" PC-sided 100% Spam Deflection System based on an intelligent challenge-response method. Therefore virtually 100% reliable, without the hassles of updating and/or tweaking comlicated filters. No fuzzy filtering, therefore no false positives. Works with any POP3 account and email program, even from anothe computer. Automatically while-lists addresses of people you send mail to. Highly configurable. Does all work while your email program checks for mail; therefore no nasty automatic polls. Many many more features...