Event ID - 8533

Event Id8533
SourceMSExchangeIS Mailbox Store
DescriptionA problem occurred while getting the properties for Users OOF message. Error code: -2147221233. Try to clear the rules or run ISINTEG to check for any problem in the database "Storage Group\Mailbox Store (ServerName)".
Event Information According to Microsoft :

Cause :

This problem may occur if both of the following conditions are true:
  1. You used the Microsoft Exchange Mailbox Merge program (Exmerge.exe) to migrate data between mailboxes in different Exchange organizations and sites.
  2. During the Exmerge.exe process, you selected the option to extract associated folder messages from the source store and import the messages to the target store. (In the Source Server dialog box, you clicked Options, and then clicked to select the Associated folder messages check box on the Data tab.)
When you try to move a mailbox that has been migrated by using Exmerge.exe, the move is not successful because the GetProps method does not retrieve the property value of an Out of Office rule message that is associated with the Inbox of the mailbox.

Resolution :

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem.Only apply it to systems that are experiencing this specific problem.
Reference LinksYou cannot move an Exchange mailbox after you use the Exmerge.exe utility

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