To export MBOX file data into Outlook PST format, you can use the MBOX to PST converter. But there are so many tools available thats why I recommend the best and very trustable solution named A2Z Migrations for MBOX to PST.
If you want a secure and error-free conversion from MBOX to PST format then use MailsDaddy MBOX to PST Converter. This is a well-programmed tool to maintain email properties, inline images, HTML formatting, attachment, and folder hierarchy in converted PST file. The software has many other conversion formats such as Office 365, EML, MSG, HTML, etc. This independent tool can be easily installed in all Windows OS and convert MBOX to PST format in a few simple clicks. The tool supports all MBOX, MBS, and MBX based email clients mailbox such as Apple Mail, Thunderbird, Netscape, Entourage, Gmail, WebMail, Opera Mail etc. You can also try the demo version first and convert 20 emails from each mailbox.
EdbMails MBOX to PST converter is a convenient tool to convert MBOX data to Outlook PST and save it to EML, HTML & MHT formats.
It includes plenty of advanced features, which can help you to view all emails along with attachments and export to Outlook PST.
Features:
Load the MBOX file and preview messages along with corresponding attachments
Export the all the mail items to the Outlook PST
Allows to export selective MBOX items to PST using various filters
Supports to save the all the mail items in EML, HTML, and MHT formats
Compatible with all the latest versions of Windows OS and Outlook
Overall, EdbMails MBOX to PST is an efficient email extractor tool. It supports mailboxes of over 30 email clients including Mozilla Thunderbird, Apple Mail, PocoMail, SeaMonkey, Eudora, Opera Mail, Entourage database, and Gmail takeout backup etc. The application is easy to use and has a simple interface. Users with all levels of knowledge can navigate it with ease.