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- Dr. Jørgen Mash's DNS database list checker http://moensted.dk/spam/
- List of All Known DNS-based Spam Databases (blacklists) http://www.declude.com/junkmail/support/ip4r.htm
- Current Blacklist Comparison (note: no statistics for false positive rates) http://www.sdsc.edu/~jeff/spam/cbc.html
Note that it's extremely important to compare false positive rates (nonspam messages marked as spam), as well as spam hit-rates, when evaluating any anti-spam system, include DNS blocklists. (For example, a blocklist that returned a match for every single mail would 'catch all the spam', but would also mark every nonspam mail too.) Some of the above pages omit this information, so take with a pinch of salt.
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\[http://www.blocklisting.com/faq.html news.admin.net-abuse.blocklisting\] is a newsgroup devoted to discussion of subjects related to the use, administration, and effects of [BlockLists] in ameliorating the problem of unsolicited bulk email and other unwanted or abusive network traffic. It is also accessible through \[http://groups.google.com/groups?group=news.admin.net-abuse.blocklisting groups.google.com\]. |