Trying to de-google and looking for an alternative to Gmail.
Don’t mind if it’s a paid service if it’s robust.
I’m surprised nobody has mentioned PurelyMail. Its technically in beta, but I’ve been using it without issue since the beginning of this year (2023).
Also using PurelyMail, tt’s the cheapest non-free email service I can find.
It passes email delivery tests, setup SPF, DKIM and DMARC easily without issue.
The downside is that it’s basically one man handling whole this service, but I assume this service has been fully automated because the margin of profit is so low.