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Name resolution switchover in Exchange

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QUESTION POSED ON: 05 April 2004
At what point during a migration from Exchange 5.5 to Exchange 2003 does the Outlook client start to use Active Directory for its name resolution?

By name resolution, you are asking about resolution of SMTP e-mail addresses (rather than DNS name resolution). Exchange 5.5 has its own directory so Outlook checks there when resolving an SMTP address on the To: or Cc: lines. Once your mailbox has moved over to Exchange 2003, the SMTP address goes to the Active Directory for resolution.

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Archive: Lee Benjamin -- Deployment and Migration

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Exchange 2003 migration best practices

Importing e-mails without third-party software

Importing distribution lists

Exchange 5.5 moving methods

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Ghost e-mails

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Moving Exchange Server

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