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Step 3: Enable MRS Proxy service

May 31, 2018 | by iaur | posted as Hybrid(EXO), M365 Migration

Step 2: Enable the MRSProxy service

If the MRSProxy service isn’t already enabled for your on premises Exchange 2013 Client Access servers, follow these steps in the Exchange admin center (EAC):

  • Open the EAC, and then navigate to Servers > Virtual Directories.
  • Select the Client Access server, and then select the EWS virtual directory and click Edit 
Edit icon

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  • Select the MRS Proxy enabled check box, and then click Save.

From <https://technet.microsoft.com/en-us/library/o365e_hrcmoverequest_fl312271(v=exchg.150).aspx>