Lavabit is the encrypted email leader. Get the best, by those who invented it.
Currently using Tutanota but they've just retired my current plan and doubled the price.
I'm looking into hosting my own email. I would like to have encryption but it doesn't function very well when both sender and receiver need to be on the same platform. In addition none of the information being sent by email is overly sensitive so it's not a must.
Anyone that's hosting their own email or has experience/knowledge of Lavabit that would care to chime in I'd be greatly appreciative.