...
Note: Your iPhone needs to be at iOS version 11.3.1 or higher to use this option. Some versions of iOS may require you to go to Settings > Accounts and Passwords to remove your SU account.
Option 3 – Outlook on the web:
...
...
Note: Your iPhone needs to be at iOS version 11.3.1 or higher to use this option. Some versions of iOS may require you to go to Settings > Accounts and Passwords to remove your SU account.
...