I’m a happy SpamAssassin user, but over the past few days, I’ve noticed a bunch of unsolicited email that’s made its way through the filters and into my inbox. After investigating a little bit, it turns out that the way that the filters work changed a bit with the latest upgrade — essentially, it’s easier for long-term spammers to make their way onto the auto_whitelist (the list of addresses allowed to send mail through the filters). Luckily, though, one of the project’s administrators also noticed the failure of the new behavior, and the next revision is going to eliminate it. If you’re running version 2.42 and seeing the same thing, I’d advise you watch the download page for the 2.43 release.