Open Source mail filter, written in Perl, to identify spam using a wide range of heuristic tests on mail headers and body text. Free software. Can be used as a standalone mail filter, or from procmail. Site includes download, news, FAQ, a...
The Yahoo! Mail internet information center devoted to spam protection; it describes the anti-spam features offered by Yahoo! Mail, offers tips and tricks to avoid spam, contains the latest news about spam, and explains current spam legisla...
Spamhaus tracks the Internet's worst Spammers, known Spam Gangs and Spam Support Services, and works with ISPs and Law Enforcement Agencies to identify and remove persistent spammers from the Internet.