I also self host a mail server but I don’t think I’d every put anything super important through it. Right now I use it to send emails from the services I run (plex, file sharing, etc). It’s a fun little project but if you want something reliable it’s going to get pricy very quick.
Sad to see it go this way. I used relay for years but I can’t see a world were I’m paying for an app to access reddit and not even have full capabilities.