For starters there is no option for setting up an office 365 account only, POP, IMAP and Exhange (WebDav).
If your Office365 account requires you to authenticate with Duo, a Duo page like the one below will appear. The following instruction are how to setup your Android device to be used with your new Office 365 email.
At the BU branded screen, enter your BU email address and Kerberos password.
On your Android phone or tablet, install the Microsoft Outlook mobile app from the Google Play store.On the Add Email Account page, enter your email address and tap Add Account.Using the Outlook Mobile App allows you to leverage Duo two-factor authentication and provide the optimal Outlook mail experience.If asked to choose your provider, select Office 365.Tap Settings > Add Account > Add Email Account.