May be it's just me, but I don't use email the same on my phone as I do desktop. I have 5 accounts on my desktop but just the one witch is my mane on my phone. Aps these days cant just stay good at one thing like ff being good on windows. They want to be good on Windows, Linux, BSD, Android so on and so on.
Sometimes I must open some stupid mail on my phone because an app needs it for verification or some other nonsense. I'd like to have an accessible option to do it.