MSG to MBOX Batch Converter application to convert bundles of Outlook messages into MBOX files format. If you are worry about losing your MSG during conversion process, then there is no need to take tension because with MSG to MBOX batch converter tool will convert complete details of MSG file into MBOX format like: to, cc, bcc, received and sent details, dates, subjects, email formatting, and Attachments, read/unread status.