Use these steps to add email accounts on Apple iOS 10. Check the software version using Software versions & updates: Apple iOS 10.
- From the Home screen, tap Settings.
- Tap Mail > Add Account....
- Tap desired option:
- Enter your email address, password, and any other requested information.
- Tap Next.
- If desired, choose to sync other options such as Contacts and Calendars.
- Tap Save.
- From the Home screen, tap Settings > Mail.
- Under Accounts, tap on the email account you want to delete
- Tap Delete Account > Delete from My iPhone.