Filtering mail from multiple delivery folders

I’m using SpamSieve with Apple Mail. Mail is seen via IMAP (multiple servers).

My mail infrastructure has been built up over a number of years and does a substantial amount of server side filtering - in particular the vast majority of messages are stashed into folders on delivery rather than ever being put into INBOX.

Apple Mail (and hence SpamSieve) has problems with this when filtering - basically it does not appear to (most of the time) apply filters to stuff that is not in INBOX (unless you explicitly select messages and Apply Rules).

Is there a means to persuade Apple Mail to apply the rules to all newly seen email?


You can select some messages and choose Message > Apply Rules, but I don’t think there’s a way to make Mail automatically apply its rules to messages that aren’t in the inbox.