413 votesMatthias Jäggli commented
If you could drop the current composer and replace it by something like https://paper.dropbox.com - I'd immediately become your happiest user.
The editor from paper is exactly, how I'd wish to write emails. It's minimalistic, highly efficient and everything works, without learning it first.
So far Airmail is my main email client and I really love it, except for composing.. the composer is broken in so many ways..