MailsDaddy OST to Office 365 Migration Tool designed with advanced planning and concept to convert OST data file to Exchange Online. It simply moves the complete OSTs to cloud mailboxes of Office 365 keeping all the items of the OST data protected from being corrupted. The application supports each conversion of the damaged and inaccessible Outlook OSTs to Exchange Online environment. It identifies, recovers, and adds each offline OST from the system even the highly corrupted OSTs to O365. The software works on the conversion of the Exchange Server, IMAP, and Hotmail OSTs data to Office 365 cloud mailboxes.

For more info: https://www.mailsdaddy.com/ost-to-office-365-migration-tool/