Sure, it can be done, the question is how much time and effort you want to spend trying to keep it off of the blacklists... Fine if you are only going to email other self hosted accounts & they don't implement those mainstream filters.
Discussion
I spend NO TIME doing this. Recently we did have to reg the domain with Yahoo and a few others it took seconds to cut and paste the domain and hit submit. You are using an objection that is not real. Sorry.
TBH when I looked after a server it was a strange setup with outbound going through the upstream providers server & that side of things was not part of the job...
It was a long time ago.
Maybe I'll take another look.
Exactly. Easy enough to *send* mail but if you want someone to actually receive it, you have to go through a gatekeeper
Yeah, the other guys POP / IMAP server using "industry standard" filtering.