Beware of cheap imitations! SpamCop has been protecting the internet community since 1998. Automatically file spam reports with the network administrators who can stop unsolicited email at the source. Subscribe, and filter your email bef...
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.
spamgourmet provides spam protection using on-the-fly self-destructing disposable email addresses. Users can also set up rulesets for trusted or permitted senders, etc.
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...
Online email blacklist lookup check to find out if email server is on any real-time blacklist, spam blacklist or DNS black list commonly used to block email spam