I have been trying to move away from Zoho. I tried protonmail for the last month but it's not for me. E2E is great but the loss in functionality is a bit much.
I switched to fastmail today but I have ran into some issues there as well[1] and so far I have seen a lot of recent reddit posts criticizing the extremely slow response time(2+ days) in support tickets. So, now I am not sure if fastmail is a good option.
Migadu has been recommended to me in the past, maybe I should try that out
[1] https://reddit.com/r/fastmail/comments/m4rj0g/_/h3tq036/?con...