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Event ID 2915 is logged that indicates that a fallback throttling policy is being used on a service account in an Exchange Server 2010 environment
Article ID: 2668900 - View products that this article applies to.
Consider the following scenario:
For example, when this issue occurs, BlackBerry users cannot synchronize their mailboxes with the Exchange server.
Additionally, Event ID 2915 is logged in the Application log on the Exchange server. The following is a sample of the event that is logged when this issue occurs:
Source: MSExchange ADAccess
Message: Process Microsoft.Exchange.RpcClientAccess.Service.exe (PID=5372). User 'Sid~DOMAIN\SERVICEACCOUNT~RCA~false' has gone over budget '263' times for component 'RCA' within a one minute period. Info: 'Policy:[Fallback], Parts:MaxConcurrency:262;'. Threshold value: '100'.
To resolve this issue, install the following update rollup:
(http://support.microsoft.com/kb/2685289/ )Description of Update Rollup 3 for Exchange Server 2010 Service Pack 2
To work around this issue, restart the Exchange Server 2010 Client Access service.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.
Article ID: 2668900 - Last Review: June 8, 2012 - Revision: 2.0