If you need to convert a lot of MBOX files to MSG format, you can try Advik MBOX to MSG Converter Software. First, install the tool and launch it. Then, add your MBOX files, choose MSG as the output format, and select where you want to save the converted files. Finally, start the conversion.

This tool can convert many files at once without changing the original data. It’s easy to use, keeps your email details safe, and works with over 20 email programs. You can also try the free demo version, which lets you convert up to 25 emails per folder before buying the full version.

Learn More: https://www.adviksoft.com/mbox/msg.html