I know this is not the proper forum but you guys are so knowledgeable and it's an emergency so here goes.

Over the weekend I migrated a company's email from pop3 to imap and exchange. On one of the machines transferring to imap I moved the contents of the pop3 pst to the imap pst. The new server hadn't been pointed to by the DNS yet. These files were just supposed to copy to the pst folder and then replicate once the DNS was in place. After this was done, the emails did not show up in the inbox folder but the empty pst had grown to 1.7GB. How can I access these files?

I know I should have checked the backup, which had apparently failed, before making the changes. Any help would be well appreciated.