I’ve been pulling my hair out for a few days, trying to figure out why SpamSieve and/or the Remote Training AppleScript (which I run in app mode) suddenly stopped working correctly.
It turns out that my email provider (Dreamhost) silently enabled domain-wide spam filtering on one of my domains without letting me know. The result is that incoming mail was being filtered before SpamSieve would see it; “spam” email was being routed to a folder called “Spam” in my account.
On the chance that others are here looking for answers, I thought it would be helpful to share this on the forum, to save any other Dreamhost + SpamSieve users some time trying to figure out what was going on.