Event ID - 9168

Event Id9168
SourceCDOEXM
Description"Failed to open mailbox <mailbox name> in mailbox store <distinguished name> on server <server name>. Error: <error message>"
Event InformationAccording to Microsoft:
Explanation :

This event can be seen during Move Mailbox operations. It can occur if the Active Directory account of the mailbox that you are trying to move from Exchange Server 5.5 has not been enabled, or if the user information has not replicated to all the domain controllers in the domain.
User Action :
Ensure that the user account has been enabled in Active Directory. Also ensure that the domain controllers in the domain are synchronized.
Reference LinksEvent id 9168 from source CDOEXM

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