To minimize the lengthy manual process and to upload OST to Exchange Online without converting it into PST, try MailsDaddy OST to Office 365 Migration Tool. It recovers all the corrupted or damaged OST files, the software also supports IMAP, Exchange Server, Hotmail or orphaned OST files and import to Office 365. This OST to office 365 converter self-supporting tool which does not require the presence of Exchange Server or Microsoft Outlook to convert Outlook OST to Office 365. The application allows you to search for any particular email from a huge amount of data. It finds OST file using terms like Subject, To, Bcc, Received On, etc. It sustains the Read and Unread status of the OST file. The tool offers you the solution to migrate contacts or calendar individually. The application helps the administrator to use the Impersonate Export feature and transfer the bulk OST files to mailboxes with Impersonation rights. It can easily installed in all editions of MS Windows Operating System and allows migrating OST files of all version of the Outlook email client. The software has the Trial Version to check the consistency and efficiency of the process. It also helps you to get aware of the working process of the software.