There might be times when an Exchange Administrator will need to export the contents of individual mailboxes to offline files in order to present specific users with a format that is easily portable and ready to consume using Outlook clients. To fulfill this need Exchange 2007 SP1 will have a new set of features to export and import mailboxes to and from PST files. As I know you will ask - yes, those PST files can be bigger than 2 GB, which was a limitation of Exmerge tool used f
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A quick Google for a pst file export/repair tool gave me repair pst files