I would like to suggest OST to Outlook Converter to convert OST file to Outlook PST file format without any issue. The tool easily convert OST file to Outlook PST and numerous types of file formats such as Zimbra, Gmail, EML, EMLX, vCard, ICS, MSG, Office 365, Live Exchange server, MBOX and etc. The tool checks the preview of the email data with attachment. The tool converts OST to Office 365 and Exchange Server account.
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