Delete email

The easist way is to set up a program like Outlook or Thunderbird and use POP3 and set it to NOT save the emails on the server. This will download all the email onto the PC, and then you can just delete the inbox. 

Another way would be to delete the email address all together. Then wait a day and add it back. This has risks though. If someone happens to grab it, then they may take your email address. Its unlikely, but still not a optimal solution. 

The messages for a specific folders can be cleared through Webmail without clicking individual emails. If you are logged into the Classic view for Webmail you will see a manage folders link on the left under your list of mail folders and opening that will give you a upside folder button beside each folder name to clear all messages from a specific folder. Once this is done however the mail is not recoverable.
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