None of the Client Access Servers in the destination site could process the request

​​​None of the Client Access Servers in the Destination site could process the request.​

This error indicates that the Source or Destination Exchange server is reporting that it is out of capacity. No Client Access Server able to process the request could be found.


We recommend the following:

  1. Contact your hosted service provider or email system administrator
  2. If migrating from​ or to Office 365, enable impersonation
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