Janice,On the iPad, go to Settings (the cogwheel icon) and scroll down to Passwords & Accounts, which will show you any accounts you have. Just click on the particular account and you can click off a (green) toggle switch to shut the account. If you are using Mail with an iCloud account, there may be lots of toggle switches - covering Mail, contact, photos, etc.If you want to clear your Mail because you are passing on the iPad, you can also do a Reset (in the General part of Settings), where there are several options to select from. Hope this helps.
D Fox ● 1534d