Exchange Server’s primary purpose is to send, receive, and store messages. In previous versions of Exchange Server, message delivery was handled by an Exchange server running the Hub Transport role. A message would be generated on a Mailbox server, the Mailbox server would notify a Hub Transport server that a new message was ready, and the Hub Transport server would pick up the new message for processing.
Since there is no Hub Transport role in Exchange Server 2013, the responsibility for moving messages from one mailbox to another has been moved to the Mailbox and Client Access roles.
In this chapter, you will learn to: