Because 99% of helfhosters pull containers, with zero understanding of what they do. They they try email, because heck why not also email, and hit the wall of actually must understand what you are doing or else…

Yes probably selfhosting email is for advanced users, people who at least know how to manage a DNS record and how nwtworking works. Maybe it’s just that selfhosting bar has dropped significantly thanks to docker, and indeed email hosting is a bit more complex that just “docker compose pull” approach.

Yet i think people should not be scaring others so easily on email self hosting, it’s perfectly doable and fun to do. Maybe don’t switch your primary account just imediately to mitigate risks…