Moving from Exchange 5.5 to Exchange 2003

8.1 Introduction

A solid Windows infrastructure merely provides a robust platform for a new Exchange 2003 deployment. But what of the work required to evolve your existing Exchange 5.5 environments up to the brave new world that is Exchange 2003? Concerning ourselves with the Exchange 5.5–to–Exchange 2003 migration aspect, this is not just an upgrade of a few binaries; this is the reengineering of a whole infrastructure. We’re presented with myriad challenges: providing mail coexistence between Exchange 5.5 and Exchange 2003, providing synchronization services between the Exchange 5.5 directory and the Active Directory, and moving Exchange 5.5 mailboxes to Exchange 2003 mailboxes. Of course, we haven’t ...

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