If you are troubled about OST file corruption, I'd like to recommend you to eSoftTools OST to PST Converter tool to recover and convert OST to PST files. It can also give a live preview option that shows all addresses, inbox, sent objects, drafts, delete-items, attachments, calendar, notes, and tasks, before the conversion. The software can support all windows and Outlook editions. The software can also give a free trial pack to all users.
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