Exchange 2013 transport architecture in depth

Figure 2-3, adapted from Microsoft documentation, shows a more detailed representation of the Exchange transport architecture. The basic design discussed in the preceding introductory sections is still there, but many additional components are worth discussing. First, here are some new vocabulary words:

  • Agents are logically separate pieces of code that transform or process messages in some way. They implement the business logic that tells Exchange how to categorize, route, and deliver messages under various conditions. For example, the anti-spam and anti-malware filtering components of Exchange (described in Chapter 5) are implemented as protocol agents. Routing agents, delivery agents, and submission ...

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