- proton mail has a nice android app, and decent hotkey support, but is about $80 for 2 years to use with a custom domain name and **doesn't have "send later" support**
- zoho mail is very "advertisey" and notification heavy and noisy and not at all soothing to use.
- bluemail doesn't have good hotkey support, but _is_ basically free.
- fastmail is $60 for two years (pay by the year), but the basic plan doesn't support snooze.
- hey doesn't let you do send-as from gmail.
- mailbird doesn't have a uri scheme
- superhuman is a more expensive version of spark, which seems decent and has most of the features I care about, and basically replaces outlook I think?