@ryanc @owen I don't run my own mail, mostly because I'm on a DOCSIS pipe that (despite being a static) is probably part of a larger netblock that's on spam blacklists.
At some point maybe I'll look at getting a box in a colo or something to do that but right now I don't have time to deal with the hassle of actually making my mail be delivered.
I do want to move to a managed mail host that is anything-but-ms365 though, since my previous mail host rolled up their in house operation and turned into a 365 reseller