A.2 Spam-Filtering

A.2 Spam-Filtering

http://www.openrbl.org provides a long list of DNSBLs that may be suitable for spam-filtering. It includes hit rates (but not false positive rates) against its own recently collected spam corpus for each DNSBL.

Vipul's Razor, Pyzor, and DCC are collaborative spam-filtering clearinghouses that can be consulted by SpamAssassin. Vipul's Razor is available at http:// razor .sourceforge.net. Pyzor is at http://pyzor. sourceforge .net. DCC is at http://www.rhyolite.com/anti-spam/dcc/.

DSPAM is a spam-filtering system using statistical-algorithmic hybrid filtering ‚ filters that are trained like SpamAssassin's Bayesian classifier. Find it at http://www.nuclearelephant.com/projects/dspam/.

CRM114, the Controllable Regex Multilator, is a spam-filtering system based on learning regular expressions. Download it at http://crm114.sourceforge.net/.