I appreciate the Protonmail suggestion! One of the things that frustrates me about E-Mail is the fact that it is so hard to self host a SMTP/POP server without extensive experience and knowledge in the area.
I know there are some projects that are making that sort of thing easier (Sandstorm.io comes to mind,) but most E-mail infrastructure is so complex and centralized that I think it might just be time to come up with something new to supersede or replace E-mail. Something with encryption as a default, optionally anonymous, and peer-to-peer so self hosting is trivial. With centralization, I worry that political motivated censorship or loss of access may occur.
More than half of my online communication is via encrypted messaging apps like Telegram and Signal, and that includes friends and even some family. Yeah, Telegram is hard to figure out... is it secure or not? It is so feature packed and cross-platform that it's hard to get folks to switch to Signal. The need to basically redesign the Internet for security is widely accepted and being worked on. The Bitcoin Blockchain was like nitro on a fire as far as innovation goes. We'll get there.