How do You Convert PST files to MBOX files Effortlessly?
If you want to export PST files of all versions of MS Outlook then you can try most trust-worthy and easy to use EmailsGuru PST to MBOX Converter software. This tool is designed so well that both technical or non-technical users can operate it very efficiently. It easily convert PST to MBOX files including emails, tasks, attachments, notes, etc. The software also have free demo version that convert few number of PST files to MBOX format without any charge.
For more info: https://www.emailsguru.com/pst/mbox/