The migration of data from Microsoft Exchange to Google Apps can be performed by an administrator or, alternatively, by users themselves. The administrators' tools perform batch processes. Users' tools on the other hand, can only upload data for one user at a time, namely the data of the user actually running the tool.
For administrators, the standard tool for mail migration is Google Apps Migration for Microsoft Exchange. It can also be used within the generic method (see Chapter 12).
On the user side, the most complete tool remains Google Apps Sync for Microsoft. There are alternative solutions too, such as Google Email Uploader or Mail Fetcher.
The solution developed by Google that allows migration ...