Using ExMerge - ExMerge 6.5.7232

Hi,

I am having issues in using ExMerge to export out all of the emails into PST files that cna be used to recover the mailboxes from. I did use NTBackup to copy the entire Information Store (we ar running Standard Edition) and that was successfull.
We have used ExMerge and due to the size of some of the mailboxes (over 5GB in size), please don't ask me why they are so huge as it was given to me this way we are having problems with ExMerge. It seems as if it is it will strip out alot of the information and the PST size created will not even come close to the size of the mailbox.

Any ideas? Any thoughts on an alternative solution?

ElliTech