If you are looking for a reliable solution for OST to Outlook PST conversion. You can go with this OST to PST converter tool which can convert OST file into multiple formats like PST, EML, HTML, RTF, MSG and PDF. This tool supports both IMAP and encrypted OST file for conversion. The tool supports all versions of MS Outlook and Windows OS. To know more about the tool's features, visit: https://www.datarepairtools.com/ost-to-pst-converter.html
sbonny