Convert MBOX files (Windows & Mac OS) is possible using the MBOX Converter program. Supports batch / bulk email conversion by maintaining complete email attributes, attachments, images, etc. This program is designed with DIY interface to help professional and non-professional users to convert data from MBOX to PST, PDF, O365, IMAP, HTML, CSV, EML, Gmail, etc.

Read More - https://www.bitvare.com/mbox/