Every ten minutes the following errors shows up in the eventlog:
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[Process:Microsoft.Exchange.RpcClientAccess.Service PID:4784 Thread:19] Error occurred while resolving the Active Directory object for from email address field: '<cn>/CN=FD4C01E0AE3A3241A4DC16785EEB4B21-0000489C29B3'. Audit log will not be generated for this case. Exception details:
Microsoft.Exchange.Data.Storage.ObjectNotFoundException: The Active Directory user wasn't found.
at Microsoft.Exchange.Data.Storage.ExchangePrincipal.<>c__DisplayClasse.<FromProxyAddress>b__d()
at Microsoft.Exchange.Data.Storage.DirectoryHelper.DoAdCallAndTranslateExceptions(Action call, String methodName)
at Microsoft.Exchange.Data.Storage.ExchangePrincipal.FromProxyAddress(IRecipientSession session, String proxyAddress, RemotingOptions remotingOptions)
at Microsoft.Exchange.Data.Storage.ExchangePrincipal.FromProxyAddress(ADSessionSettings adSettings, String proxyAddress, RemotingOptions remotingOptions)
at Microsoft.Exchange.Data.Storage.COWAudit.GetSubmitEffectiveMailboxOwner(MailboxSession session, CallbackContext callbackContext)
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Is there a way to check which or what object is causing the warning?
Frank.