I agree! I switched because of their calendar integration. I needed an email tool that would send 'accept' replies to calendar invites send from outlook and go

I agree! I switched because of their calendar integration. I needed an email tool that would send 'accept' replies to calendar invites send from outlook and google, and I landed on proton. To any self-hosters if you have a working setup for that (email+calendar), please let me know! I couldn't find anything decent.