Version 2.55 of SA is out. The release notes are a bit terse, but the notes for 2.54 indicate this is a release worth installing. It adjusts some spam rules spammers were using to get past SA!
spammers have been targeting our nice rules to get themselves negative overall scores, so those rules are now much less strongly-scored. also added a “TOO_MANY_MUA” rule that will catch multiple user agent headers.
Go download it now!