When an email is deleted Outlook and Outlook Web Access users will have the email go in their Deleted Items folder for 14 days.  In addition Exchange offers a new feature called the dumpster.  The dumpster will store messages for 14 more days after they have been removed from your Deleted Items folder. 

• Outlook Web Access users will be able to go to Options, to Recover Deleted Items.  If they click on View Items they will see the email they have deleted.  To recover, select the item and click Recover.  Click Close to exit.
• Outlook Users can select their Deleted Items folder and then go to Tools->Recover Deleted Items to retrieve messages they have emptied from Deleted Items.  To recover an item select it and click on the Recover icon in the upper left.  Click on the X in the upper right to exit.
• Non-Outlook users will need to come into the Help Desk for help with Email Recovery.