378 votesAnonymous commented
This. Protonmail is Tutanota's main competitor I'd say (I use both services, competitor is just a general term there's plenty of market share for both) and they recently created a hidden service (https://protonirockerxow.onion/) for use of their application. It would be great if Tutao did the same, as right now any Tor user who wants the strongest security for their email would probably use Protonmail's hidden service. The fact that one can register through Tor browser on Protonmail's hidden service is a huge boon to them as well.