If you are facing challenges to migrate or import PST to Office 365 mailboxes then you should try the third-party software. MailsDaddy PST to Office 365 Migration Tool is a solution with rich feature that are very helpful and useful to upload PST to Office 365 without Outlook. This software performs the instant PST to Exchange Online data conversion in presence of Internet moving PST to Office 365.
This Office 365 PST import solution comes under the top 10 software to upload PST to Exchange Online Cloud Platform. The application has easy interface to provide the effortless way to transfer Outlook PST data to o365 environment.
Export PST messages, contacts, calendar, archives, etc. at once without facing any problem giving you the quality outcome keeping the entire Meta information safe and secure.