Chapter 16. Rules and Journals

Transport rules


To the toolbox

ONE of the most important architectural changes made in Microsoft Exchange 2007 was the positioning of the transport service as the single point en route from sender to recipient through which every message had to flow. With a single transport pipeline in place, Microsoft was able to create the ability to insert agents to perform specific processing as messages traveled through. In this chapter, we discuss how anti-spam agents operate on messages, so you should have a good idea of how powerful and flexible the transport pipeline is. Transport rules and journal rules are implemented through agents as well. The purpose of these agents is to process messages created within the ...

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