Understanding Upgrade from Exchange 2007 to Exchange 2010
Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2
When you're upgrading your existing Microsoft Exchange Server 2007 organization to Exchange Server 2010, there's a period of time when both Exchange 2007 and Exchange 2010 will coexist within your organization. This section discusses key points about both the upgrade process and coexistence as they apply to the Client Access, Transport, Mailbox, and Unified Messaging server roles. For more information, see the following topics:
For more information about the Exchange 2007 to Exchange 2010 planning and upgrade process, see the following topics:
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