Associating an Exchange Server 'box' to multiple forests

SearchExchange.com expert Peter terSteeg explains whether or not it is possible share an Exchange "box" with different email addresses in a few different forests.

My company is currently running Exchange 5.5 on NT 4.0 and we are upgrading to Windows 2003 and Exchange 2003. We have offices in New Jersey and Denver that also link back to a few offices in Asia where we have a different email address. How do we share an Exchange Server "box" with different email addresses in a few different forests?
An Exchange Server "box" cannot be associated to multiple forests, unless you are using a forest specific for resource-forest mailboxes. Then you can configure the resource forest for the particular rules and/or routing you desire among multiple physical locations.

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Related information from SearchExchange.com:

  • Expert Advice: Building an Exchange resource forest
  • Tip: Multiple domain names congregate to one server
  • Tip: Pros and cons of multiple Exchange Server organizations
  • 15 tips in 15 minutes: Managing recipients and distribution lists
  • Reference Center: Exchange Server and Active Directory resources
  • Reference Center: Exchange Server deployment and migration
  • This was first published in July 2006

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