How To Set Up Office 365 On IOS 11 Default Mail App

Step 1: Click on Settings from your iPhone Home Screen

Step 2: Click on Accounts & Passwords

Step 3: Click on Add Account

Step 4: Click on Exchange

Step 5: Enter your Email Address, Description and click on Next

Step 7: Enter your email address and Office 365 Password

Step 8: Click on Save Password and then Accept

Step 9: Click on Save