I’m using Migadu - I used Purelymail before, it was great but I’m trying to avoid US-based services.

But if you have a static IP with a decent reputation (there’s a variety of websites that let you lookup your IP in the major blocklists), self-hosting email isn’t as hard as some say. I’ve been using Mox for ~6 months for my non-essential email and it’s been maintenance-free after the initial setup - if it goes another 6 months without a hiccup I’ll probably migrate my family email to it.