> What client is this, Mail?

Yes.

As to the other questions, the person reporting this is one of the founders of Panic¹, who are trusted developers who have been making Mac apps for decades. So you can be reasonably sure there’s at least a modicum of due diligence in the report.

¹ https://panic.com

I'm not questioning the Twitter post. I just need more details in order to get an accurate picture of what's actually happening. The tweet is too vague for me to really understand, regardless of how trusted the person is.

In that case, going back:

> Are they replacing whatever spam filter they had with Apple Intelligence?

I’m not sure. I don’t think so, but I also don’t know if we know for certain.

> Is there usually a spam filter at all?

Yes. In addition to what may be marked as spam on the server, Mail can also do its own filtering.

https://support.apple.com/en-gb/guide/mail/mlhlp1065/mac

> Is the usual spam filter disabled?

Can’t say, as I’m not the reporter. But again, email can be marked as junk from Mail, the server, both, or neither.

I read there is a new mailbox that just has these messages that are high priority, which sounds like it was just added alongside whatever is going on already…

I bet it’s just a question of do you want ai to try to find important messages the spam filter accidentally flagged or not.

(Me? No)