Thunderbird, Gmail, WebMail, Entourage, Apple Mail, and various other email client supports the MBOX file format. But Microsoft Outlook only supports PST files so users need a solution to migrate data from MBOX to PST format.
The manual way is not much secure and helpful therefore third-party solution like MailsDaddy MBOX to PST Converter tool is used. This single application easily transfers data in bulk from MBOX to Outlook PST format. Users can install the solution on different Windows OS and allows users to open mailboxes in PST.
The free demo version of the software exports 20 emails from MBOX to Outlook PST format.
Manual way: MBOX to Outlook