Been there, self-hosted my email for more than half a decade, gave up on it a few years ago for a couple for reasons: If you are self-hosting the most importan

Been there, self-hosted my email for more than half a decade, gave up on it a few years ago for a couple for reasons: If you are self-hosting the most important authentication fallback for your online identity, an ill-timed downtime or deliverability problem really hurts. Your reputation can be affected by neighboring bad actors you have no control over. For example, SpamRATS punishes full subnets without an actual appeals process. From the point of view of a major provider, the same email from your tiny server is going to have a lower score than one from their system. Encountered this a lot against Gmail. And it's a commitment. If you go the self-hosted route, you will need need to keep up on new security and filtering practices, even if you use a turnkey solution. You might get bored with this after a while.