It was a nice run with A2Hosting, but recently they've been filtering my outgoing mail. Specifically emails to my wife. So this clearly won't do.

Some good options - https://www.migadu.com - https://www.polarismail.com/pricing/ - https://accounts.mxroute.com/index.php?/news/view/53/lifetime-plan/ - https://mailfence.com/#pricing

Some interesting discussions: - https://brianlovin.com/hn/31143847 - https://purelymail.com/docs/

TBD: I'll have to put more detail into this topic at a future time