1.Protonmail Behaves like a CIA/NSA “Honeypot” Protonmail has an Onion domain that allows users to visit their site using the TOR browser.  Protonmail even has an SSL cert for that onion address even though it's completely unnecessary. When a user makes a new account with Protonmail on TOR they are

Interesting article critical of Protonmail, a service I see widely promoted to political dissidents as a way to avoid NSA surveillance of emails.

Maybe a better method would be GNU Privacy Guard (GPG) to encrypt e-mails on your own computer before sending them?

There is also this: https://sendgrid.com/blog/what-is-starttls/

Or Bitmessage (which is decentralised)?