MailsDaddy PST to Office 365 Migration Tool helps in full conversion of Outlook PST to Exchange Online. It includes multiple key attributes to upload PST data file to O365 performing complete Office 365 PST Import service. Through this application, the software can easily perform the tasks to import PST to Office 365 OWA without any file size limitations. It gives the clicking solution to execute Office 365 Import PST process moving each PST notes, attachments, sent items, inbox, etc. to its related PST file folders. The software also allows migrating only contacts or calendars, etc. from On-Premise PST to O365.