MSExchange OWA, Event 146

I get below error often in Application log of Exchange Server (MSExchange OWA, Event 146). How could I solve this problem. I think that user was deleted in AD, while mailbox was not....

Thanks for help in advance!

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Outlook Web App failed to create ExchangePrincipal for S-1-5-21-3178225484-391519746-223417597-1730. IsMonitoringRequest: False. Error: Microsoft.Exchange.Data.Storage.AdUserNotFoundException: The Active Directory user wasn't found.

   at Microsoft.Exchange.Data.Storage.ExchangePrincipal..ctor(ADUser user, ADObjectId mdb, DatabaseLocationInfo databaseLocationInfo, RemotingOptions remotingOptions, Boolean asArchive, IPerformanceDataLogger performanceLogger)

   at Microsoft.Exchange.Data.Storage.ExchangePrincipal.InternalFromADUser(ADUser user, ADObjectId mdb, DatabaseLocationInfo databaseLocationInfo, RemotingOptions remotingOptions, Boolean asArchive, IPerformanceDataLogger performanceLogger)

   at Microsoft.Exchange.Data.Storage.ExchangePrincipal.InternalFromADUser(ADUser user, RemotingOptions remotingOptions, IPerformanceDataLogger performanceLogger)

   at Microsoft.Exchange.Data.Storage.ExchangePrincipal.FromUserSid(IRecipientSession recipientSession, SecurityIdentifier userSid, RemotingOptions remotingOptions)

   at Microsoft.Exchange.Clients.Owa2.Server.Core.OwaClientSecurityContextIdentity.InternalCreateExchangePrincipal()
July 16th, 2013 8:56pm

Hello,

The information in event log is not quite enough for me to determine the root cause. Could you possibly tell me how long the problem occurs and what operations have been done before the error?

In order to hunt the problem, we can try to use the Set-EventLogLevel cmdlet to set the event log level registry value for the specified category. Then reproduce this issue and we can get more detailed event logs about it.

It would be grateful if you could post those logs here, and Id like to help you to hunt and solve the problem.

Best regards

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July 23rd, 2013 10:06am

Hi,

I'm testing our new Server 2012 R1/Exchange 2013 CU3 system, ready to go live in 2 weeks.  It's been working fine, but suddenly over the last couple of days I'm getting these every 30 seconds or so.

Outlook Web App failed to create ExchangePrincipal for S-1-5-21-2969714247-2606657594-413593035-1555. IsMonitoringRequest: True. Error: Microsoft.Exchange.Data.Storage.ObjectNotFoundException: The Active Directory user wasn't found.
   at Microsoft.Exchange.Data.Storage.ExchangePrincipal.FromUserSid(IRecipientSession recipientSession, SecurityIdentifier userSid, RemotingOptions remotingOptions)
   at Microsoft.Exchange.Clients.Owa2.Server.Core.OwaClientSecurityContextIdentity.InternalCreateExchangePrincipal()

Any ideas?   

Thank you,

Vicki

May 29th, 2014 6:26pm
epic bump here, im getting this same error after applying CU9. sure can't see the user if i look up the SID.
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July 10th, 2015 2:38am

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