Comment by beachy

I switched my primary email to Fastmail a few months ago. My requirements were simply:

- must work well

- must be a paid service with proper support from a vendor focused on email (i.e. not consumer gmail)

- must allow custom domains (so I can regain control over my email if the provider goes under by updating MX records)

- must be the cheapest in the absence of compelling benefits (ruled out GSuite or protonmail)

Fastmail fitted the bill and seems to be working as I would expect.