This window lets you enter the users for the currently open bridge or gateway MailCenter. It is accessed by selecting 'Create…' from the 'User' menu when a bridge or gateway MailCenter is open, or by selecting a name from the user window and selecting 'Change…' from the 'User' menu. You simply enter the user’s first name, last name, and address (if any) in the corresponding boxes.
NOTE: When dealing with remote services, often times the Address field contains the user account name on the other mail system.