Some deleted messages can be restored even after you have emptied your Deleted Items folder. This procedure only works on Windows in Outlook and Outlook Web App (OWA). You cannot recover deleted items using OWA Light, Outlook 2011 (Mac), or Microsoft Entourage.

Microsoft Outlook

1. Open Outlook.

2. Select your Deleted Items folder.

3. Select the Folder tab in the ribbon and then select Recover Deleted Items.

4. Click an item, and then click Recover Selected Items.

   Tip: To select multiple items, press Ctrl as you click each item, and then clickRecover Selected Items.

Outlook Web App

1. Log in to OWA. Do NOT select the "Use Outlook Web App Light" option.

2. In the folder list in the left-hand side of the window, right-click or ctrl-click on Deleted Items.

3. In the resulting pop-up menu, select Recover Deleted Items.

4. Use the resulting window to search for the desired items and select the items you wish to restore.

5. Click the Recover Selected Items  icon.

For more information on Microsoft Outlook, visit Microsoft's website.