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You cannot mix up same DAG with Exchange 2010 and 2013 versions.<br />
<br />
<a href="https://social.technet.microsoft.com/Forums/office/en-US/994606ea-a8a2-4890-a08f-b313411e9d40/dag-with-exchange-2010-exchange-2013?forum=exchangesvradmin" rel="ugc nofollow">https://social.technet.microsoft.com/Forums/office/en-US/994606ea-a8a2-4890-a08f-b313411e9d40/dag-with-exchange-2010-exchange-2013?forum=exchangesvradmin</a>
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You cannot mix up same DAG with Exchange 2010 and 2013 versions.

https://social.technet.microsoft.com/Forums/office/en-US/994606ea-a8a2-4890-a08f-b313411e9d40/dag-with-exchange-2010-exchange-2013?forum=exchangesvradmin [https://social.technet.microsoft.com/Forums/office/en-US/994606ea-a8a2-4890-a08f-b313411e9d40/dag-with-exchange-2010-exchange-2013?forum=exchangesvradmin]

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Hi,<br />
<br />
Is it possible to use or configure Exchange 2013 Standard as a failover or replication server for Exchange 2010 Standard? That is, have Exchange 2010 fail over to Exchange 2013 (Both Exchange server being standard editions).
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Hi,

Is it possible to use or configure Exchange 2013 Standard as a failover or replication server for Exchange 2010 Standard? That is, have Exchange 2010 fail over to Exchange 2013 (Both Exchange server being standard editions).

Exchange 2013 Standard Edition as Failover / recovery Server

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

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