Ask the Expert

Mixed mode vs. native mode Exchange Server

Can an Exchange Server 2003 work in "mixed mode" Active Directory or does it have to be "native mode" Active Directory?

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Yes, you can run Exchange 2003 in either mixed mode or native mode. For a great explanation of the differences, please look at the Microsoft article Description of mixed mode and native mode in Exchange 2000 Server and in Exchange Server 2003.

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Related information from

  • Reference: Exchange Migration Learning Guide
  • Tip: Mixed mode vs. native mode: What's the difference?
  • Tip: Going native
  • Resource Center: Exchange 2003 tips and resources

  • This was first published in January 2006

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