Office 365 provides full Mail, Contacts, Calendars, Reminders, and Notes synchronization with the iPhone. Please note that the setup procedure below is based on iOS 26.3.1.
 
 To set up your Office 365 email account on your iPhone:


  • Tap "Settings".

         


  • Scroll down to find "Apps".
  • Scroll down to find "Mail" and tap it.
  • Find "Add Accounts" and tap it.  
  • Then tap "Add Account".
  • Next look for the blue shaded words "Choose from a List"
  • Next tap "Exchange".

          

  • Type in your @atu.edu email address and a description for the account, for instance, ATU Office 365, and then tap "Next".

          

  • Then click on Next.

  • Next click on "Sign In".

  • Then a small box will say "Settings wants to use microsoftonline.com to Sign In" > Click Continue.
  • You are then prompted to put in your ATU password and Authenticate with Duo Mobile.
  • After your account is verified, you can select which services you would like to sync with your iPhone. Then tap "Save".

          

  • To verify your email is working, push the home button and tap the "Mail" app.

        

  • Your email should then be downloaded from your Office 365 account and appear in your inbox.