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Can you change the Default Postmaster email address in EOP RRS feed

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    Hi,

    We have an EOP subscription pointing to our on premise Exchange 2010 server. When EOP sends a custom message to a recipient the sending address is postmaster@ourdomain.com. We want to change this to itsupport@ourdomain.com.

    I can find a PowerShell commandlet that will allow you to change the default postmaster address for Exchange online, Set-TransportConfig -ExternalPostmasterAddress <email address> but this command is not recognized in EOP.

    Can this be done without an Exchange Online tenant?

    Cheers,

    Jason

    Monday, July 25, 2016 5:10 AM