G-Lock Spam Combat

[Riggs]

This program looks promising. A Mailwasher-type anti-spam program with
bayesian filtering. 2.19 Mb

From the authors...

G-Lock SpamCombat is a spam filtering software that lets you remove spam
emails just from the mail server without pulling them down into your
inbox. SpamCombat ensures the efficient and easy control under incoming
emails, thus helping to save your time and money!

SpamCombat takes the decision about spam at the result of passing
incoming emails through its filters. HTML Validator, DNSBL filter and the
Bayesian filter are used to identify spam. HTML Validator is a filter
that parses the HTML part of the incoming email and checks the HTML tags
for validity. If a number of dubious HTML tags are found, the message is
considered spam. DNSBL filter consists in comparing the senders' IP
addresses against lists of known spam databases using Public Blacklists
(also called DNSBL lists). The Bayesian filter is the most powerful spam
filter based on the analysis of the message content and mathematical
calculation of spam. Applying the Bayesian filter to incoming messages
allows to determine up to 99.5% of spam emails. Cont...

http://www.glocksoft.com/sc/index.htm