I know the adage that self-hosting email is hard. I use a third party smtp server to send emails for my Lemmy instance in order to guarantee delivery, for example.

However, other than potential uptime, what are the disadvantages to setting up self-hosted incoming email?

Incoming email is like 99% of my email usage. I’m happy to use a third party mail provider for outgoing email, but don’t see why I shouldn’t simply host incoming email myself.

Thank you <3