If you are using Duo Two-Factor Authentication (2FA), Outlook Mobile is the only supported email client. The Android email apps are not compatible with Duo 2FA.
Since every Android phone has different stock email clients and different user interfaces, the steps may vary in order or in style. The following instructions are meant as a general guide rather than full instructions.
Select the Exchange set-up
There might be different options for Exchange depending on the mail clients you have installed. Make your selection based on what email client you wish to use.
You should be prompted to enter in the following information:
If you were not prompted for this information and the setup is not successful then return to Step 4 and tap Manual Setup
Domain Name: Leave field empty