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
Part II: Working with Server Roles
202
or Receive Connectors created on Hub Transport server ??™ s internal mail flow within the Active Directory
site and across Active Directory sites in an Exchange Server 2007 forest. This enables Hub Transport
servers to communicate with each other. Hence, you do not have to configure any connectors between
Hub Transport servers within the Active Directory forest.
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