http://cebka.pp.ru/trac/wiki/RspamdFeatures contains: > Rspamd is anti-spam system that is designed to work faster than > spamassassin by using event model and regular expressions > optimization. ... With similar rules rspamd is about ten times > faster than spamassassin.
A quick browse of the source tarball shows the conf directory has a bunch of .inc files that have some regular expressions and even meta rules. Two thoughts: 1. Any speed tips to be gleamed? (Unlikely given C vs Perl) 2. Any useful rules to borrow? ... actually, a closer look at those rules reveals some or all of them likely came /from/ SpamAssassin. Sadly, this raises issues about license violation; no credit is given (a violation of copyright), and I'm not sure about whether software licensed under the Apache License v2 can legally be relicensed under the Original BSD License as this software is. While http://www.apache.org/legal/resolved.html talks about incorporating sources of various licenses in Apache-Licensed software, it does not address the other direction.
