alt Hacker NewsI am not a Fastmail user but I completely doubt this. I have been using Gmail for 20 years and I have never seen a spam mail land in my inbox which has always impressed me. Everything else I have used from time to time does miss a few, which I guess it might be acceptable if you want to move to another host.
There's like 1 spam message in my Gmail inbox every day. Some of it is so obvious that an LLM running on a Raspberry Pi can correctly classify it. For example car insurance ads.
(My email address is on my home page. It's also my username on over 100 sites that I signed up for over 20 odd years.)