Server Cannot Service This Account


Exchange Web Services (EWS) reported that a mailbox cannot be accessed because of throttling limits imposed by Exchange.

Check the error to determine if it was reported for the Source or Destination system.

​If migrating from or to Office 365​, enable impersonation to reduce the effect of throttling.

If migrating from or to Exchange 2010 or later, and you have control ​over the email system, disable the Exchange throttle policy. 


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