Planning a New Exchange 2003 Organization
Deploying Microsoft® Exchange Server 2003 in an organization where no previous versions of Exchange are running is fairly straightforward. The main considerations are whether the organization is running Windows 2000 Server or Windows Server 2003 and whether Active Directory® directory service is implemented in a way that accommodates Exchange. Another major consideration is whether you need messaging systems other than Exchange to connect to or migrate from, such as Lotus Notes or Novell GroupWise. If so, you need to plan for installing and running connectors.
For more information about how to install a new Exchange 2003 organization, see the following resources:
Exchange Server 2003 Deployment Guide
Exchange Server 2003 Interoperability and Migration Guide
Exchange Server Deployment Tools