Open-Source Spam Filter Advances

"Open-source spam filter ASSP has been upgraded with a much improved administration interface, Sender Policy Framework (SPF) support, SMTP session limits, IP connection limits and a much better statistics page for reporting on mail traffic. ASSP is a Perl program, so the same software runs on Linux, Unix, Windows, OS X and most other systems for which a Perl interpreter is available. The most noticeable addition is the SPF support. The SPF protocol is designed to prevent messages with incorrect return-addresses from being delivered. Because most spam currently has a forged return address, this approach might rapidly become an effective anti-spam measure." Source: ITWeek.com