I've only seen this product once before but I'm pretty sure that it has a recovery tool (at least the version I saw). According to their website if you are running v. 2.5 or later it has this facility.
Again, according to their website you do this:
Recovering mails from a corrupted file is very easy:
- Open the recovery tool (Tools/Recover Messages
- Select the folder to recover
- By default, Express Recover will ignore mails that seem valid and thus should be displayed correctly in Outlook Express, but you untick the 'Ignore valid mails' if you want to recover all messages in the file
- Click 'Go!'
- Click 'Save recovered' and choose a folder to save the files
- Navigate with Windows File Explorer to the folder where you saved the messages, select them all and drag and drop them in a folder in Outlook Express (it might be judicious to put them in a new folder)
Hope this helps.
J.