
Chapter 7: Confi guring the Hub Transport Role
201
Figure 7-9
Transport Server Limits
Several limits that apply to message and connection retry attempts, message expiration, connection
limits, and restrictions can be set on the Hub server. Using the
Set-TransportServer cmdlet you can
modify these settings. For example, when a message delivery fails due to a transient failure, it continually
retries and expires after two days. You can change the
MessageExpirationTimeout value within the
range of 1 and 90 days. The same applies to the transport log settings for the message tracking,
connectivity, and Protocol logs. Figure 7 - 9 shows how to modify message expiration timeout settings.
Creating and Modifying Connectors
Connectors determine the path a message takes when routed between servers within an organization, to
and from the Internet, and between messaging organizations. They provide single direction or one - way
connections between a source server and a destination server. In Exchange Server 2007, at least four
types of connectors can be explicitly created and configured. These include the Send Connector, Receive
Connector, Routing Group Connector, and Foreign Connector. There also exists implicitly created Send
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