I used to love Fastmail, but their spam/phishing filtering (and customer service) have been really poor lately. I don't know if AI is helping or hurting them. My anecdotal experience suggests the latter.

As one example, I'm now regularly getting phishing email from "The IRS" that always comes from some random account that has been taken over. The latest one was literally from a hotmail account (and my address is dot ca so I'm clearly not subject to the US government). If they can't detect this kind of half-arsed phishing attempt, then things are pretty bleak.

Their customer service was pretty bad when I tried to discuss it. The rep didn't even acknowledge what I wrote. I won't be renewing unless they get this sorted.