In Exchange Server 2010 SP1, client throttling policies are used to manage the performance of the Exchange organization.  All client throttling policies are enabled by default i in Exchange Server 2010 SP1. The throttling policy has group settings that control the amount of resources that a user or a connection can use.

Throttling Policy settings are only applicable for Exchange Server 2010 SP1 and later. If the application event log on the Exchange or SBS2011 servers displays an error message similar to the following example, then the throttling policy settings are applicable to your system:

Process Microsoft.Exchange.RpcClientAccess.Service.exe (PID=XXXX). User ‘Sid~ServiceAccount~RCA~false’ has gone over budget ‘XXX’ times for component ‘RCA’ within a one minute period. Info: Policy:DefaultThrottlingPolicy_abcdefghijklmnopqrstuvwxyz, Parts:ABC:XXX;’. Threshold value: ‘110’

 

If you are experiencing slow Exchange email ingestion that may be caused by these policies, you can modify client throttling policy for an archive service account.

Complete the following steps:

  1. Create the throttling policy: on a computer that hosts the Microsoft Exchange Management Shell, open the Microsoft Exchange Management Shell. Enter the following:

    New-ThrottlingPolicy My_New_Policy

  2. Configure the throttling policy by entering the following:

    Set-ThrottlingPolicy My_New_Policy -RCAMaxConcurrency 150

  3. Apply the throttling policy to archive service account by entering the following:

    Set-Mailbox “MyUserName” -ThrottlingPolicy My_New_Policy

The My_New_Policy can be any name you want to call policy, The My_UserName is the mail box name of the person or account you want to add to the new  ploicy.

 

 

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