Event Type: Error
Event Source: CiscoUnity_UMR
Event Category: UMR Thread Error
Event ID: 137
Attempts to deliver Unity Message Repository messages have failed due to Unity configuration or connectivity issues with the Partner Mail Server.
AvUMRSyncSvr will suspend message delivery for 300 seconds, after which message delivery will be attempted again.
During this outage, messages may accumulate in the temporary store.
Getting these alerts on the Unity server recently..
seems would have to upgrade to higher versions . Any answer for these alerts.. did some forum check.. but nothing concrete to put up to the clients.
Not sure if this will help you ....?