Before You Start
First, please ensure that you are enrolled in PennO365 Two-Step Verification by following the steps here: Two-Step Verification (PennO365 Email Accounts)
Follow the directions below to add or remove the O365 account from your device's default mail and calendaring applications.
Add O365 Account
Android (with Duo Two-Factor Authentication)
A Note About These Instructions
Two-Factor Authentication is not consistently supported on Android. As such, you will need to download the Outlook app from the Google Play Store first.