Cleanfeed is a

spam Spam may refer to: * Spam (food), a canned pork meat product * Spamming, unsolicited or undesired electronic messages ** Email spam, unsolicited, undesired, or illegal email messages ** Messaging spam, spam targeting users of instant messaging ( ...

filter for use with Usenet news groups. As well as blocking spam, it is also able to block

binary image A binary image is one that consists of pixels that can have one of exactly two colors, usually black and white. Binary images are also called ''bi-level'' or ''two-level'', Pixelart made of two colours is often referred to as ''1-Bit'' or ''1b ...

posts in non-binary news groups and HTML posts. It acts by looking for repeated patterns and duplicate messages, and is able to identify known spamming sites and domains. It is published under the Artistic License. Cleanfeed was originally developed and maintained by

Jeremy Nixon Jeremy Nixon (born 1982) is a Canadian politician who was elected in the 2019 Alberta general election to represent the electoral district of Calgary-Klein in the 30th Alberta Legislature. Political career After obtaining a Bachelor of Commun ...

and later by Marco d'Itri, with the last formal update being released on 5th Aug 2001. A beta release was made available on 1 May 2002 and is the recommended version to deploy. In 2007 Steve Crook began producing a series of updates, initially designed to counter Hipcrime floods. Later releases include a number of new features and patches. He later developed PyClean, a python equivalent to Cleanfeed.

References

Anti-spam Usenet {{web-software-stub