Against our better judgement, we attempted to upgrade from 7.0.3 to 7.5.1 last night. What a nightmare that was! We're back up and running now, but for the life of me I cannot get SpamAssassin working correctly. It wasn't working at all on 7.0.3, stopped as soon as we upgraded from 7.0.2. It's at least running on 7.5.1, but cannot be customized. It seem to be stuck at a threshold of 5, no matter what settings are specified at the mailbox level. We've tried various combinations of server wide settings and personal settings, one on the other off, vice versa, and both on at the same time, various thesholds, etc. Server wide blacklist doesn't seem to work at all, at least not when personal settings are enabled. And no matter what I try, the subject is never rewritten. What is up with this?