1 Login to your GroupWise account. You will need to login using the  
   regular GroupWise client.  
2 Click on Tools and select Check Mailbox Size.  
3 You will see this window.  

4 The “Mailbox Information” section gives your "Current mailbox size" and  
   the “Maximum storage limit” information.  
5 Under the View section you can choose to view the contents of the Trash,   
   Sent Items, Received Items or Posted and Draft Items folders.            
6 In the  lower half of the window you will see your mail items listed.  
   You can click on any one of the headings, Size, Date, Subject or From  
   to sort by that column.