FaxPress Xerox Interface Guide
Fax Repository user for each Fax Repository, and the FaxPress User Name must be the same as the Xerox User name in each case.
23.After mapping the user, you can enter their Email Address if you want them to get email notifications of received and outgoing fax events. Leave the Email Address field blank if you do not want them to receive email notifications.
24.Enter an optional mapping for any user who wants to use their mailbox ID to authenticate themselves when they are sending faxes from a Xerox WorkCentre Pro; if they are mapped as Xerox and FaxPress users, they can enter their mailbox ID, then the fax number of their recipient, and be authenticated to send the fax.