So, ProtonMail [0] and Tutanota [1] appear to be better choices.
[0] https://en.wikipedia.org/wiki/ProtonMail
[1] https://en.wikipedia.org/wiki/Tutanota
[0] https://unseen.is/
[1] http://lelantoss7bcnwbv.onion/
So, ProtonMail [0] and Tutanota [1] appear to be better choices.
[0] https://en.wikipedia.org/wiki/ProtonMail
[1] https://en.wikipedia.org/wiki/Tutanota