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Julian Farber's avatar
Julian Farber
Copper Contributor
Nov 19, 2018

Hybrid - centralized mail transport

Hi all,

I'm in the final phase of planning our Exchange 2013 to Exchange online Hybrid deployment.

We require that all primary smtp mail routes through our email gateway service (Mimecast) for compliance purposes.

What I would like to understand is when enabling this option using the HCW , will it also apply to our non primary SMTP domain mailbox users like our @***.onmicrosoft.com domains ?

Regards

 

 

exchange online
Exchange Server
hybrid
  • Adam Ochs's avatar
    Adam Ochs
    Steel Contributor
    Nov 20, 2018

    Hey Julian,

     

    In the HCW you have to select the domain(s) that you are using for hybrid. Those domains are then used in the connectors that are created.

     

    If you do not specify the domain, it will not be included on the connectors, and thus will not be impacted by the mail routing changes.

     

    The same is true for any connector that is going to be pointed to mimecast, you have to specify what domains it applies too. In normal configurations the .onmicrosoft.com would not be included.

     

    Adam

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