Receiving materials with an expiration date

When sending out materials from the library there is an option to have your materials expire if you select the Advanced mode.  If the received materials have an expiration date, they will only be available for a limited time in the Active Inbox folder.  From the moment they expire, they will then be stored in the Expired Inbox folder.  The expired inbox folder will look exactly like the active inbox folder, but the user will no longer have access to view the expired file.