It is doable, but certainly not something i would recommend. I quit doing it a decade or so ago. There are a bunch of hoops you need to run through to keep you

It is doable, but certainly not something i would recommend. I quit doing it a decade or so ago. There are a bunch of hoops you need to run through to keep your server whitelisted, though having a static IP in a non-residential IP block helps a lot. Sadly, most people attempting to self host email will (static IP or not) have a residential IP, meaning you're almost certain to get blacklisted fairly quick. I'd much rather leave that to someone who knows what they're doing. I'm aware that people self host email for (supposed) privacy, but they somehow always seem to forget that most email threads have at least two parties, and despite all kinds of privacy measures, you cannot guarantee that your recipient is not using Google/Microsoft/Whatever, or they forward it to a person that is using one of those. In that light, your (clear text) emails are not really confidential. Instead, if you must use email for confidential information, use encryption, or better yet, use one of the multitudes of newer "more better" platforms for sending your information. Most new platforms have encryption baked in, though in most cases you're trusting the service provider to handle your keys correctly.