If in case your Outlook PST file gets corrupt/damage, then utilize "scanpst.exe tool". If ScanPST.exe it doesn't work on your corrupt PST file, then I'm here to recommend you one more proficient tool named as
Outlook Recovery Software which effectively works to recover Outlook PST files without any data loss. This is a most successful software that performs efficiently most of its time. This software can easily Repair corrupted, deleted and damaged Outlook PST files folder data including all emails, contacts, calendar, tasks, notes, journals, attachments, meeting, sub-folders etc. Even more, it comes with user friendly interface to make recovery process fast and simple. It has brilliant and enhanced user friendly interface to make this software fast and simple.
Use this free demo/trial version for free evaluation. By using the demo/trial version, you can check the preview of your mailbox content which you can actually recover from it.