Article ID: 188637
This article was previously published under Q188637
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Microsoft Exchange Server version 5.5 has a new feature called Item Recovery, which allows a user to recover deleted items.
If Item Recovery is enabled, when an item is deleted from the client it is not actually removed from the private or public information store, but only hidden from view. These deleted items no longer count towards the mailbox quotas for users. This can cause the size of the information store databases to grow beyond what was originally planned, depending on the number of users and the mailbox quotas on each mailbox.
This article explains how you can determine how much space in the information store is taken up by deleted items that can be recovered (recoverable items).
Using the Microsoft Exchange Server 5.5 Administrator program, you can determine the number of deleted items on a per user basis from the Mailbox Resources of the Private Information Store properties by performing the following steps:
The above steps do not provide the total amount of space taken up by recoverable items in the private or public store. The total amount of space used by recoverable items can be determined in one of two ways: