MailsDaddy PST to Office 365 Migration Tool, perfect solution to supports the conversion of all PSTs whether single or multiple to upload to O365. It helps in secure migration of On-Premise PST data file to Exchange Online mailboxes keeping the hierarchy of the Outlook PSTs intact. A supportive solution while importing PST data file to Exchange Online mailboxes. It prevents from lengthy process of the manual method of network upload solution and allows users to complete the entire tasks in few steps. It helps users to perform the organized and hassle-free Office 365 PST Import service.