IPad, Mail problem !!!

On the iPad, there is no delete all button and you have to click the edit at the top of the list of email messages. Once you click that you’ll be able to select a multitude of messages at once, and then delete them all at once, but this is still an extremely slow process. If it’s an email that can also be accessed by web browser, I would suggest using that and see if they have an option to delete all and it would probably be quicker.