Last year I looked at various services for email and finally switched to posteo.de. It's cheaper than Fastmail and Protonmail listed in this article, promises p

Last year I looked at various services for email and finally switched to posteo.de. It's cheaper than Fastmail and Protonmail listed in this article, promises privacy and the company has a lot of good ideals and actions that I like. I needed IMAP and didn't want to be locked in to one provider if I ever wanted to move out (Protonmail's IMAP is just now in beta, more than two years after the request was made by people, and all users are tied to Protonmail because there is no export of all mails or non-Protonmail-app mechanisms to retrieve mail). The lack of custom domain support in posteo (for privacy reasons - what it calls "data economy") was a concern for me on portability, but it's a compromise I decided to make.