has released version 2.1.3 of his spam filtering tool
SpamSieve, which uses Bayesian filtering for better results. The new edition features new menu commands for easy installation of plug-ins and AppleScript support files, faster processing of messages, keyboard shortcuts for Apple Mail scripts, added support for Outlook Express 5, and more.
This is a free upgrade for existing SpamSieve owners. The full version is US$25; a free trial allows you to check out the software for 30 days or 20 launches, whichever comes first. SpamSieve requires Mac OS X v.10.2.x “Jaguar” or higher (v.10.3.2 “Panther” or higher is recommended) and works with Apple Mail, Emailer, Entourage, Eudora 5.2 or higher, Mailsmith, Outlook Express 5 and PowerMail.