If you looking the best and advanced solution to convert PST to MBOX then I would suggest trying to use of KDETools PST to MBOX Converter.
Click here: https://www.kdetools.com/pst/mbox/
I would like to suggest you can Download ZOOK PST to MBOX Converter enables user to export PST to MBOX format in a single click to extract Outlook emails. It is the quick solution to convert PST to MBOX with attachments without any alteration of any data.It provides the complete conversion from Outlook PST to MBOX format along with their data items such as Outlook emails, contacts, calendars, notes, tasks, and much more.So that they can easily convert PST file of Outlook 2016, 2013, 2010, 2007 or any below versions of Outlook. The tool also offers to create a new folder and save the resultant MBOX file in it at their desired location. Users can also test the free demo of the utility by which they are capable to export 25 items from PST file to MBOX format in single process.
Explore More:- https://zook-pst-to-mbox-converter.soft32.com/
Secure PST to MBOX converter software that allows you to convert multiple PST files to MBOX format. The software has efficient features like batch convert option which allows users to select PST items in bulk. User can easily recover multiple damaged PST files, recover deleted items including all emails, contacts, calendar, tasks, journals, etc.
Download here: http://www.howtosol.com/products/pst-to-mbox-converter.html
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