POP emails

Hi all

This is a daft one but I'll ask it all the same! I was setting up our old DC260 to email scans directly to us and I stupidly left the email setting on the default POP, so the Xerox has seemingly downloaded all my Exchange emails so my mailbox is now empty! I've changed the settings now so my emails are coming through okay, but is there a way to retrieve the emails that the Xerox has downloaded or are they gone forever?

Thanks