Exchange server migration tool you can send your Microsoft data ie calender, contacts,tasks or notes from one exchange server to other exchange server domain form MS Exchange Server 2003 to Exchange Server 2007 and Migrate. I will send a blog post you can read it this post is very helpful related your issue : For more details read this blog post : http://exchangeservermigration.blogspot.com/2013/06/how-to-perform-migration-in-exchange.html
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