I certainly upvoted this submission and use Protonmail regularly. They may soon be supporting PGP keys too, which would make them all the better. If I remember correctly, the Swiss recently got some attention for voting in favor of stronger surveillance, which surprised me. I wonder if it will affect Protonmail in any way. Here's a link from another "secure" email service that wrote about it: https://tutanota.com/blog/posts/surveillance-switzerland