Deleting email account

[FJT109]

Hi all-

My wife and I both have verizon email accounts. I, for one, was not at all happy with the limits on attached files and was generally not happy with the way verizon makes us log on and I found the process not very intuitive for me, so I switched to Gmail awhile ago. I still keep the verizon account for less immediate notifications.

My wife also moved to Gmail and she wishes to delete her email and email account. 

What is the easiest way to delete the account? I suppose deleting the account will remove all the emails, but if not, does she simply have to delete the emails manually?

Thanks