@kaikatsu Naw. Gentoo users hate breakage. It's Arch users that deal with that.

Mail is IMO a difficult thing to self-host. There are setup helpers like Iredmail, but even there, if something breaks in an update, you're on your own and probably do not understand the system enough to fix it.

I was using my own domain with Fastmail, but when I couldn't pay, that went away. I'm now using a GMX account. (Yes, I'm a Gentoo user--and Ubuntu, Debian, Devuan, Fedora, OpenSuse also.)