Event ID - 5001

Event Id5001
SourceMSExchange Messaging Policies
DescriptionAn error occurred while loading Active Directory information for recipient '%1'. The Active Directory information may be corrupt, or Active Directory may be unreachable. The AD RMS Prelicensing agent will not acquire a prelicense on behalf of this recipient.
Event InformationAccording to Microsft :
Cause :
This Warning event indicates that the Microsoft? Windows Right Management Services (RMS) Exchange agent, the Active Directory RMS Prelicensing agent, failed to retrieve the user information for the recipient from the Active Directory. The agent will not acquire a prelicense on behalf of the recipient. This event may be caused by one or more of the following:
a)The data returned by the Active Directory was corrupted.
b)Network connectivity issues between the computer that has the agent installed and a domain controller.
Resolution :
If this event occurs infrequently, no user action is required.
If this occurs frequently, check network connectivity between the computer that is running agent and the domain controllers. Use the Ping or PathPing command-line tools to test basic connectivity. Use Ping to isolate network hardware problems and incompatible configurations. Use PathPing to detect packet loss over multiple-hop trips.
Reference LinksEvent ID 5001 from Source MSExchange Messaging Policies

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