I’m a longtime SpamSieve user. I just installed it on my new M1 MacBook Pro. I seem to be having an issue with the SpamSieve rules and false positives.
Maybe it’s simply a matter of building up the corpus on my new machine, but there are now hundreds of older messages (going back years) in my local Apple Mail spam folder. I’ve gone through them and trained them as Good, but an hour or two later they reappeared in the Spam folder along with more older messages.
ADDENDUM: I just moved them all out and they’re all coming back in again!
Another issue is that when I move them back using the “Train as Good” script, they all get marked as unread, and I have to go through and mark them as read again.