Assume that you are running a Microsoft Exchange Server 2007 Hub Transport server in an environment that has an Exchange Server 2013 Edge Transport server deployed. Then, you try to export an Edge Subscription file from the Edge Transport server and import the file to the Hub Transport server by running the New-EdgeSubscription cmdlet. In this situation, the Hub Transport server rejects the subscription file.
This issue occurs because the Exchange Server 2007 Hub Transport server is restricted from accepting the Edge Subscription file from the Exchange Server 2013 Edge Transport server.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about the New-EdgeSubscription cmdlet, go to the following Microsoft websites: