I've been using Outlook for ages, but for the last year the app has been horrible for my 365 account. Basically every time I want to see my mail I have to log in again. I tried a factory reset, reinstalling the app and nothing, also the default mail app for win 10 cant sync that mail (even if outlook desktop can).
So here I come, asking ya what app you use for mail on android, there are soo many that I cant really choose (wanted to use thunderbird, but only desktop for that one).