iPhone Exchange Setup
Scroll down and tap “Mail, Contacts, Calendars”
Tap “Add Account”
Choose the second option “Microsoft Exchange”
Fill in the required fields.
Tap “Next”
Wait for the account to be verified and tap “Save”.
You have now successfully completed setting up your exchange account. Go back to your home screen and tap the mail icon to start sending/receiving emails using your exchange account!

Download Microsoft Outlook for the iPhone from the App Store at https://appsto.re/au/8OwV4.i
The follow account types are supported:
After installing the Outlook app, open it and tap on the settings button.
Then tap “Add Account” (if shown), then tap “Exchange”.
Enter your email address and password.
You have now successfully completed setting up your exchange account. Go back to your home screen and tap the Outlook icon to start sending/receiving emails using your exchange account!