Open the phone’s Settings app
Tap Accounts, Passwords, Users & Accounts, or Accounts and Backup
Select the mail account you want to remove
Tap Remove Account or Delete Account
Confirm the removal
Open the Mail app to make sure the account is gone
Open the phone’s Settings app
Tap Accounts, Passwords, Users & Accounts, or Accounts and Backup
Select the mail account you want to remove
Tap Remove Account or Delete Account
Confirm the removal
Open the Mail app to make sure the account is gone