Last year I really wanted to use ProtonMail, but the lack of SMTP and (at the time) inability to send plain text email were a big no-no for me. So I switched f

Last year I really wanted to use ProtonMail, but the lack of SMTP and (at the time) inability to send plain text email were a big no-no for me. So I switched from Gmail to Fastmail. I'm loving the service. The web app is pretty snappy and works really well. Even on mobile it is surprisingly responsive. I find their UI beautiful and quite intuitive (don't read too much into this, as I am someone who really dislikes material design -- one of my grips with Gmail). Really can't complain. I'd recommend Fastmail to anyone wanting a private mail service.