Try OST Converter to move multiple Outlook folder OST file to Office 365 Exchange Online environment with emails, contacts and calendar.
OST Converter is all-in-one tool for moving Outlook folder OST file to Office 365 with emails, contacts and calendar. The software contains simple working platform so that all users can utilize its operational steps to move Outlook folder OST file to Office 365. OST Converter not only provides the option to move Outlook folder OST file to Office 365 but also enables to move OST file folder to PST, PDF, MSG, EML, MBOX, NSF, Zimbra and more.
What's New
Version 2.5: Also Save OST to PST, PDF, MSG, MBOX, Mozilla Thunderbird, Zimbra, Lotus Notes and more
Version 2.4: Also Save OST to PST, PDF, MSG, MBOX, Mozilla Thunderbird, Zimbra, Lotus Notes and more