iPhone & iPad: Set up email
The instructions below explain how to set up your Office 365 email account in the Microsoft® Outlook app on your iPhone, after you’ve created your Office 365 email account.
Go to your iPhone or iPad’s Settings > scroll down and tap Accounts & Passwords > Add Account.
Note: If you’re on iOS 10, go to Mail > Accounts >Add Account.
Enter the password associated with your email account. Tap Sign in or Next.
Enter your Office 365, Exchange, or Outlook.com email address and a description of your account. Tap Next.
Tap Sign In.
Note: Tap Configure manually if you need to enter server settings.
Choose the services you want to sync with your iOS device and tap Save. You’re done!