I want to move away from Google and was ready to make the shift to proton exactly the day before all that drama started about the CEO being a trump bootlicker and stuff…

Then I looked into some alternatives and haven’t moved yet. So I really can’t decide which one from tuta, Mailbox, kSuite or maybe still proton provides the best service. And recommendations or experiences y’all want to share to help me decide? :)

Either a good UI (web/iOS) or very good compatibility with third party apps, good spamfilters and maybe an integrated calendar would be important features.