If you added a shared mailbox to your Outlook profile, you may experience performance issues, such as:

• Items appear to be missing, and/or new items are not appearing in your secondary mailbox.
• Deleted items continue to appear in your secondary mailbox.
• Outlook is slow, and/or there are random hangs.

Instructions

To resolve these issues, try the following methods:

1. Reduce the number of folders in secondary mailboxes. To delete folders, simply right-click the folder you would like to delete and select Delete.
   
   
   
2. Disabled caching of all shared folders. If deleting folders is not an option, consider disabling caching of all shared folders. To disable caching in your Microsoft Outlook account, follow these steps:
   
   1. Click on File at the top menu bar. 
      
      
      
      
   2. Select the U of T email account in the list of accounts under Account Infomation. Then click on Account Settings.
      
      
      
      
      
       
   3. In the Account Settings dropdown, click on Account Settings...
      
      
      
      
   4. In the Account Settings dialog box, select the E-mail tab and then double-click on your account.
      
      
      
      
   5. In the Exchange Account Settings dialog box, select More Settings.
      
      
      
      
   6. In the Microsoft Exchange dialog box, select the Advanced tab.
   7. Clear the Download shared folders check box.
      
      
      
      
   8. Click OK twice.
   9. Click Next, and select Done.
   10. Restart Outlook.