Exchange Server 2010: Previous exchange server Coexistence

Exchange server 2010 have the option for coexisting with the previous version of Exchange server 2003 and 2007 in the same forest. It is not possible to have exchange 2000 or exchange 5.5 with the exchange 2010 in the same exchange organization. Integrating Exchange server 2010 into the existing exchange 2003 or 2007 is called the transition scenario, where as new deployment of exchange server 2003 in new active directory forest and then transferring/migrating the records across the forest is called migration scenario.

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Logan

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