Open the Yahoo Mail app
Tap your profile icon or menu icon
Tap Manage Accounts
Select the account you want to remove
Tap Remove account
Confirm the logout if prompted
If needed, sign out from all accounts by removing each one individually
Open the Yahoo Mail app
Tap your profile icon or menu icon
Tap Manage Accounts
Select the account you want to remove
Tap Remove account
Confirm the logout if prompted
If needed, sign out from all accounts by removing each one individually