Exchange Server Active Directory Supportability Matrix

Operating system environment

SP1

and CU3

SP3 RU5 or later

SP2

SP3 RU13 or later

Windows Server SP1 Active Directory servers

X

X

X

X

X

Windows Active Directory servers

X

X

X

X

X

Windows R2 Active Directory servers

X

X

X

 

X

Domain and forest functional level

SP1

and CU3

SP3 RU5 or later

SP2

Exchange 2007 SP3 RU13 or later

Windows Server SP1 domain functional level

X

X

X

X

X

Windows domain functional level

X

X

X

X

X

Windows R2 domain functional level

X

 

X

   

Windows Server SP1 forest functional level

X

X

X

X

X

Windows forest functional level

X

X

X

X

X

Windows R2 forest functional level

X

 

X

   
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