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MCITP: Microsoft® Exchange Server 2007 Messaging Design and Deployment: Study Guide by Rawlinson Rivera

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Chapter 8. Planning Exchange Server 2007 Interoperability

Planning Exchange Server 2007 Interoperability

The test and this chapter are slanted toward planning more than operations. Therefore, this chapter does not focus on step-by-step procedures. For additional information on step-by-step procedures, refer to the Exchange 2007 documentation from Microsoft.

Any messaging organization, including one with Exchange 2003 or older versions, will have a period of coexistence and will require careful planning for interoperability. If you do not plan for interoperability, message flow or supporting messaging services may not work between the various versions of Exchange or other messaging systems.

Planning Coexistence with Exchange 2000 Server and Exchange Server 2003 in a Single Organization

This section covers one of the most common coexistence situations: coexistence with a legacy Exchange organization, including 2000, 2003, or a combination of both. If you are still running or working with Exchange Server 5.5, all traces of Exchange Server 5.5 computers must be removed from the organization before Exchange 2007 can be installed and supported. Table 8.1 outlines which versions of Exchange can coexist with Exchange 2007.

Table 8.1. Supported Coexistence Scenarios with Exchange 2007

Legacy Version

Coexistence with Exchange 2007

Exchange Server 5.5

Not supported

Mixed 5.5, 2000, and 2003

Not supported

Exchange 2000 Server

Supported

Exchange Server ...

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