Hub Transport role not detected in local site

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at]  

Topic Last Modified: 2006-06-06

Microsoft® Exchange Server 2007 setup displays this warning because an existing Hub Transport server role could not be detected in the local Active Directory® directory service site.

You have chosen to install the Mailbox Server role before an instance of the Hub Transport role is installed in the Active Directory site.

Exchange 2007 Hub Transport Services are deployed inside your organization's Active Directory. Hub Transport Services handle all mail flow inside the organization, applies organizational mail flow routing rules, and are responsible for delivering messages to a recipient's mailbox.

Users will be able to log on to their mailboxes, but mail cannot be sent or received from this mailbox server until a Hub Transport role is installed.