If you are looking to import MBOX files into Foxmail, you can use the
eSoftTools MBOX Converter software. This tool supports the conversion of both individual and multiple MBOX files and has already helped many users achieve excellent results. It allows you to export MBOX files into various formats, including PST, EML, MSG, EMLX, HTML, and NSF. You can try this tool on any Windows-based system.
Read More:- Import MBOX Files to Foxmail