iPad and iPhone issues with passwords
how to remove services used in the past
apple asks for my daughter’s email password for services she no longer uses in over 10 years.
Question marked as
Unused email accounts can simply be removed from iPad settings:
iPadOS13 or later
Settings > Mail > Accounts > [Your email account] > Delete Account
iOS12 or earlier
Settings > Passwords & Accounts > [Your email account] > Delete Account