A simple MailsDaddy OST to Office 365 Migration Tool helps in uploading the entire OSTs at once including emails, contacts, tasks, attachments, etc. to O365. The software recovers in OST item without corrupting any OST data to Exchange Online mailboxes. The OST to Office 366 Converter help users to perform the migration of OST to Impersonate mailbox of Exchange Online. The User can simply perform the bulk data conversion with the help of an effortless CSV file process moving OST to O365 Primary, Shared and Archive mailbox. The software also helps in filtering data using date filter option where user need to put the date range of a particular period. This allows transferring OST of that specified date range.

Get the tool here: http://www.psttooffice365.com/ost-to-office-365-migration-tool.php