If you’d like to convert PST to MBOX Format, you should try the perfect tool available that name is eSoftTools PST to MBOX Converter Software. Its works Only a few more steps are needed to clarify this. Both ANSI and UNICODE PST files are accepted for conversion. The program works with both new and old versions of Microsoft Outlook. The trial version is also available for all customers and in the trial version you can convert 25 email items per folder without any price.
Read more:- https://www.esofttools.com/pst-to-mbox-converter.html