For which domains do you need to run the Microsoft Exchange Server 2003 DomainPrep process?

A. . You must run ForestPrep once for each Active Directory (AD) forest. Additionally, you must run the DomainPrep for the following domains:

• The root domain
• Domains that will contain Exchange 2003 servers
• Domains that will contain Exchange 2003 mailbox-enabled objects (such as users and groups), even if no Exchange servers will be installed in these domains
• All domains that contain Global Catalog (GC) servers that Exchange directory access components might use
• All domains that will contain Exchange 2003 users and groups that you'll use to manage your Exchange 2003 organization

You must be a domain administrator to run Exchange domainprep but no Exchange permissions are required.