If you are looking for the best perfect MBOX Converter software. The eSoftTools MBOX converter tool best option to simply converts MBOX files to NSF files. This application is also handy for converting MBOX files to NSF files. It's straightforward to use and safe. There was no data loss or corruption throughout the conversion. A free DEMO pack for every user to export 25 items from each folder of MBOX.
For more info- Convert MBOX files to NSF files
For more info- Convert MBOX files to NSF files