I understand those emails can add up in a hurry fenny222! What make and model device do you have? There should be an option to click a checkmark on each email to highlight it and then you should be able to delete all the emails that are checked. We are happy to review more specific options once we confirm the model.
Follow Us on Twitter@VZWSupport
Yea, most devices won't allow you to select multiple, but if you could go to the provider's webmail client (or just use your preferred e-mail client on your computer,) you should be able to take care of it quickly.