mail rules junk with multiple mailboxes

Thanks. I haven't really dealt with how they interact these days. Years ago, Apple junk filtering was poor, so went to SpamSieve and for a while only used SpamSieve. Somewhere along the line (maybe a year or so ago), I ended up turned on Apple's junk. But maybe I'll keep a closer eye on how they work together. I also have some filtering from my provider.

Why not? Why does Apple hide these things? But I also use SpamSieve, but I can handle that separately if needed (don't have any at the moment, so will check later).

Thank you

Replying to self. Also complicated by two Macs and an iPhone.

Again replying to self since editing not allowed.

When I'm away from home, SpamSieve may not work.