OStatic

SpamAssassin is a computer program released under the Apache License 2.0 used for e-mail spam filtering based on content-matching rules, which also su...

Spamato is an extendable spam filter system written in Java. Various spam filters are included; additional filters can easily be plugged into the syst...

Clam AntiVirus (ClamAV), is a free open source antivirus software toolkit for Windows and Unix-like operating systems. One of its main uses is with ma...

DSPAM is a server-side statistical anti-spam agent for Unix email servers. It masquerades as the email servers local delivery agent and effectively fi...

John the Ripper is a fast password cracker, currently available for many flavors of Unix (11 are officially supported, not counting different architec...

The Anti-Spam SMTP Proxy (ASSP) Server project aims to create an open source platform-independent SMTP Proxy server which implements whitelists, Bayes...

amavisd-new is a high-performance and reliable interface between MTAs and one or more content checkers, including virus scanners, and/or the Mail::...

extendedPDF is an OpenOffice.org macro that converts an OpenOffice document into a PDF document. The output includes the original documents headings a...

Gurgitate-mail is a mail filter in Ruby. Since its rules files are in Ruby and not line-noise, they're both easy to read and very powerful.

GNU m4 is an implementation of the traditional Unix macro processor. It is mostly SVR4 compatible, although it has some extensions (for example, handl...