In this chapter, you've received a crash-course in Exchange Server 2010's architecture, covering all the roles that make up Exchange:
Client Access
Mailbox
Hub Transport
Edge Transport
Unified Messaging
We've looked at what facilities each of these Exchange roles provides and how they interact with other components of Exchange Server; additionally we've looked at how these roles can be built as highly available components of Exchange and what other technologies such as Load Balancers can be used to build a secure and reliable Exchange environment suitable for a mobile workforce that need to depend on messaging services.
In the second part of this chapter we've covered the basics of planning an Exchange Server deployment, using an example organization that we'll focus on throughout the practical examples next chapter onward.
In our planning for the Exchange Server deployment we've made use of the architecture knowledge gained in the first part of the chapter and then used freely-available...