Thanks for providing useful information! But I would like to introduce another OST to PST Converter which can convert OST to PST completely free and can export OST to Live Exchange Server, Office 365, Outlook PST, EML, MSG, MBOX, EMLX, HTML, vCard(.vcf) and vCal (.ics) file format. Its demo version is completely free with Export 30 mails each and every folder in each format.

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