Parkland Health and Hospitals email retention policy calls for automatic deleting of mail older than 31 days.
To save any e-mail items beyond 31 days you must archive them.

To archive email items in GroupWise
1  First make sure you are logged into the workstation with your own Parkland 
    Novell network login ID and password. This will assure that the network 
    drive used for archiving e-mail will be mapped correctly.
2  Login to GroupWise.
3  Right click on the email item that you wish to archive and select 
    Move to Archive.
    Email item will disappear indicating it has been moved into the Archive.
4  To view your archived email click File then click Open Archive.
5  To back out of the Archive click File and click Open Archive again. 

    Note* when you are in the archive view, the GroupWise window will 
     show (Archive) GroupWise-Mailbox at the very top of the toolbar.