Page History

...

Support for the following DNSBLs is built-in, and shipped in the default configuration.

NJABL Spamhaus PBL+SBL+XBLhttp://www.njablspamhaus.org/dynablock.html BR AHBL dnsbl.ahbl.org BR SORBS BR SPAMCOP http://www.sorbsspamcop.net/BR Spamhaus PBL+SBL+XBL NJABL http://www.spamhausnjabl.org/BR SECURITYSAGE blackholes.securitysage.com BR SPAMCOP AHBL http://www.ahbl.org/ BR SORBS http://www.spamcopsorbs.net/ BR MAPS http://www.mailabuse.org/ BR If you're installing SpamAssassin for site-wide use, you must license their services; mail-abuse.org is now only free for personal use. (Note that SpamAssassin still works very well without using these services, however.)

...

DNSWL http://www.dnswl.org/ BR Bonded Sender Program Trusted sender in Bonded Sender Program http://www.senderscorecertified.com/BR IADB Vouched ISIPP Vouched for Sender http://www.isipp.com/iadb.phpBR Habeas Accredited Senders Habeas accredited sender http://www.returnpath.net/BR

Accuracy

Live accuracy figures for most of the DNSBLs used in [SpamAssassin], based on the Oct 2003 mail feed for one user, can be found \[http://taint.org/2003/11/07/184247a_mail.html here\].

...

• Spamlinks http://spamlinks.net/filter-dnsbl.htm
• 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
• Wikipedia on DNSBLs http://wikipedia.org/wiki/DNSBL
  

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.

...