We all know the Exchange setting for “recover deleted items” is out of the box, set to 14 days. What if a user accidentally did a Shift + Delete of the message? well there is a nice work around that one of my students from this week’s Exchange class tipped me off on. it’s KB246153 and outlines via a registry hack on the client. this helps if you have hard deleted (permanently deleted) items in Outlook and want to recover them. For example, if you do not move items to the Deleted Items folder before you delete them, these items are hard deleted, and you cannot recover them from the Deleted Items folder normally.  This reg hack allows the user to view the dumpster.

By default, the Recover Deleted Items functionality is only enabled on the Deleted Items folder in a user’s private folders. Items that are hard deleted cannot be recovered. To enable the Recover Deleted Items functionality on mail folders other than the Deleted Items folder (for example, for the Sent Items, Drafts, Outbox and Inbox folders), make the following changes to the registry:

  1. Start Registry Editor.
  2. Locate and then click the following key in the registry:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Exchange\Client\Options
  3. On the Edit menu, click Add Value, and then add the following registry value:
    Value name: DumpsterAlwaysOn
    Data type: DWORD
    Value data: 1
  4. Close Registry Editor.

Now does this dumpster change in Exchange 2010? Very much. Dumpster 2.0 is an interesting animal and had to be evolved to be able to support things like legal retention holds and other security requirements. Looking for more info on Dumpster 2.0? Our friends at the MSExchangeTeam.com site already outlined the before and after of Dumpster 1.0 vs. 2.0

Single Item recovery in Exchange 2010

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