Outlook 2007: items disappear / got lost when moving to a network PST where network drive is full

Hi,

one of my users created a .Pst on his personal network share. This network share is limited in drive space. He moved a subfolder from his mailbox to this new .pst. This subfolder had 300 mails and ~ 480 MB; the drive space on his personal network share had only 50 MB left.

Outlook completed the folder move without any error. But the new folder on the pst file only contains 30 items with a size of 50 MB (that size which was left on free space on the network share).

So, we're missing a lot of mails now and I can't seem to find those lost emails anywhere.

Please help.

Thanks