This article has been updated. A new section,
Create a DNS SRV Record for Integration with Hosted Exchange UM
was added to this article on February 13, 2012 and the article was moved to the Lync Server 2010 TechNet Library. You can now view the content of this article at
Configuring On-premises Lync Server 2010 Integration with Exchange Online
This article describes how to configure integration between on-premises Microsoft Lync Server 2010 deployments and Exchange Online.
On-premises Lync Server 2010 supports interoperability with Exchange Online in the following ways:
Outlook Web App can interoperate with on-premises Lync Server 2010 to provide users with instant messaging (IM) and presence within the Outlook Web App interface.
: Chloe Brussard and Randall DuBois
: June 28, 2011
: February 13, 2012
: Lync Server 2010
For more information about how to configure your Lync Server 2010 deployment for Unified Messaging, see the following topics:
: Lync Server 2010 integration with Exchange Online
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