This is great. I noticed however that they mention that getting kicked off of Google (which apparently is happening *A LOT* now, as nearly every day there's been multiple HN posts stating they have been locked out) - and this is the (much needed) thrust towards self hosting these services.

However, I noticed they left out making a mail solution. This is important and shows just how enormous of an opportunity there is in this space to make a quick, easy simple, self hosted mail solution.

Any protonmail-like self hosted *simple* solutions out there?