These archives/enabled mailboxes are not required. The admin should not have enabled the system mailboxes for archiving. The mailboxes are used to move data from the Exchange server to the EV server. Not sure why the anonymous account was enabled. I would disable the accounts for archiving in EV and eventually ZAP the accounts using EVPM.

Thanks.... He didnt enable them directly... They just had all Mailboxes enabling themselves, and thus created one for every exchange mailbox.   I have cleaned out alot, and just wanted to make sure there wasnt a reason for having these archives, which I wasnt aware of.