So which email provider would you say is more reliable? Self hosting on AWS etc?
Edit:also, how do you replicate access to email/calendars across devices? (smartphones/PC)
Edit:also, how do you replicate access to email/calendars across devices? (smartphones/PC)
If I wanted to host my own I wouldn't ask about providers...
Email these days is about much more than just email. Calendar integration and sync between devices that lets you access email on said devices as well as resiliency one would want for an essential service mean just "hosting your own" is definitely not trivial.
Then there is antispam etc.