Don’t have any sense about the great tool to do the recovery. Don’t worry I have software. Enstella OST to PST Recovery Software is best to convert OST to PST files. This software has many exporting OST files to multiple cloud mail apps together with Gmail, Yahoo, Office365, Outlook.com, and other IMAP-based mail applications. This software gives a free demo version in which users can convert 25 items per folder from the OST mailbox.
