1)   Spam Bully 2007.4.1.5
Intelligent Bayesian Spam Filter, SpamBully works with Outlook, Outlook Express and the new Windows Mail in Vista. Has Allow/Block List, Cellphone Forwarding and more then easy to use Multi-Language Interface.

 2)   Spam Weed 2008.1
SpamWeed Pre-trained refined Bayesian learning filter, sole Whitelist Mode, stops spam and viruses before being delivered to your inbox. Works with Outlook, Outlook Express, Thunderbird, Eudora, Incredimail and all POP3 Email Clients.

 3)   RQ SpamFinish 1.02
RQ SpamFinish allows you delete spam automatically or manually before download from mail server. This Anti spam tool based on black and white-list and compare the messages fields [From], [To] and [Subject] with this lists.

 4)   23 Spam Filter 1.0
Is Advanced POP3 email filtering software.