While I'm on a roll with my cranky pants today, WTAF cannot anybody at @fastmail write an algorithm that detects as spam the 100 or so versions of this email I get every week?

I can detect them without even opening the email. Yet somehow it's beyond the resources of a very large email provider to crack this?

It's the worst thing about Fastmail. They're a good mob in lots of other regards, but seriously I tag these again and again and again and again and again and again and again and again and again and again and again and again and again and yet they keep extracting my time and effort.