1. If you are on iOS 13.x.x, Open the Settings app and select Passwords & Accounts
If you are on iOS 14.x.x, select Mail and then select Accounts
2. Select the account for your Regent email account. On iOS, the default name is Exchange.
3. Scroll down and select Delete Account
4. Once the account is removed, select Add Account
5. When selecting the account type, select Microsoft Exchange.
6. Enter your Regent email address.
7. Click Sign In when the popup shows up
8. Enter your username and password at the Regent login page