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Microsoft Exchange Server relies completely on Windows Active Directory for authentication, storage of configuration data, and authorization. This dependency means that Exchange is tightly tied to the Active Directory forest model, so moving Exchange users and their mail data to another Active Directory forest is a common, and critical, task. To make cross-forest migrations easier, Microsoft has steadily introduced new migration capabilities with each version of Exchange since Exchange 2000. In addition to these built-in abilities, third-party software vendors such as Binary Tree and Quest Software have built migration utilities to fill gaps in Microsoft’s migration tool feature set.
In this paper, written by Paul Robichaux, the goal is to help both internal IT staffs and the business partners, consultants, and system integrators they hire to understand migration tools for Exchange from three perspectives: their architecture, the mechanics of how they deal with migration operations, and how they assist administrators with the project management tasks associated with migrations. The paper will close with a summary of the strengths and technical capabilities of both Quest’s Migration Manager for Exchange and Binary Tree’s E2EComplete products.