Requirements include running Windows 2000 Server or Windows Server 2003 and Active Directory.
Messaging services Network News Transport Protocol and SMTP as well as Web services must be deployed on the server.
Administrators must ensure that Domain Name System resolution and network connectivity are running properly.
Active Directory schema and domain structure must be extended to Exchange Server prior to installation.
In Exchange 5.5 upgrade scenarios, mailboxes as well as system and public folders must be migrated to Exchange 2003 post-installation.
Some features, such as Outlook Web Access, require security review and additional software configuration, such as configuring Secure Sockets Layer on Internet Information Services.
Discuss this in the eWEEK forum.