This article describes how Deleted Item Recovery functions.
Deleted Item recovery is a way to recover items after they have been removed
from the Deleted Items container on the Outlook client. For this to work, the
Exchange Server computer must be configured to allow Deleted Item Recovery. The
actual recovery of items is done from the client while logged onto the Exchange
: This information only applies to Exchange Server version 5.5 and
later, and Outlook 8.03 and later clients.
Configuring Deleted Item Recovery
- In the Exchange Server Administrator program, open the
properties of the Private Information Store, and select the General
- Set the number of days that you want messages saved after
they have been deleted.
NOTE: You can also set the messages not to be deleted until a backup
has been done. You can override this by setting the retention time on
individual mailboxes in the Properties for the mailbox by changing the Deleted Items Retention time on the Limits tab.
- To recover deleted items on the client, select the Deleted
Items folder, and on the Tools menu, click Recover Deleted Items, and select the items from the list presented. Click
Recover selected items to have the items restored to your
Deleted Items folder.
How does this work?
There are two deletion types, logical
. The logical deletion is when the item is deleted from the
client. The item is marked in the store, and hidden from the client. This item
is also marked for the number of days that it is to be retained before the
Information Store Maintenance Agent does the physical deletion. The physical
deletion is the actual removal from the store.
The Deletion Process
- The message is deleted from Outlook.
- If Deleted Items Recovery is not enabled, the message is physically deleted from the
If Deleted Items Recovery is enabled, the PR_DELETED_ON property of the message is set,
hiding the message from the client.
Recovery Process for Private Items
- On the Tools menu, click Recover Deleted Items, and a listing of items will be displayed.
- Select the item you want to restore, and click Recover Deleted Items. The item will then be restored to the Deleted Items folder on
- Move the item to the proper folder.
NOTE: Private Folders that are recovered will have "(Recovered)"
appended to their name.
Recovery Process for Public Items
- If the item is not a Public Folder, select the Public
Folder that the item was deleted from, and on the Tools menu, click Recover Deleted Items. A list of deleted items will be displayed.
- Select the item you want to restore, and click Recover Deleted Items. The item will be recovered to its original location.
- If the item is a Public Folder, select the parent Public
Folder where the Public Folder resided.
- On the Tools menu, click Recover Deleted Items. A list of deleted items will be displayed.
- Select the item you want to restore, and click Recover Deleted Items. The item will be recovered to its original location, and the
folder will have "(Restore)" appended to its name.
For additional information, please see the following articles
in the Microsoft Knowledge Base:
XADM: Clients Cannot Recover Items After Item Recovery Is Enabled
XADM: How to View the Amount of Space Used by Item Retention
XADM: How to Determine the Size of Recoverable Items in the IS
Article ID: 228934 - Last Review: April 13, 2006 - Revision: 4.0
- Microsoft Outlook 97 Standard Edition
- Microsoft Outlook 97 Service Pack 1
- Microsoft Outlook 98 Standard Edition
- Microsoft Exchange Server 5.5 Standard Edition
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.