@sir Hello, I've been using Runbox, with my own domain for a few years, and I'm now considering Protonmail. 2 avantages of the latter : "zero access encryption at rest" and it's located in Switzerland (so out of 5 / 9 / 14 Eyes, contrary to Runbox's Norway). Meanwwhile, I just discovered you thanks to your post about Signal (in which you make very valid points !), so I'm very eager to understand why Protonmail should be avoided.