MBox Office 1.5.4 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This software for Mac OS X was originally created by Technichor. We recommend checking the downloaded files with any free antivirus. The program lies within Productivity Tools, more precisely Office Tools.
From the developer:
MBox Office is a simple MBox viewer for your Mac computer. The application lets you restore your archived .mbox archive to any IMAP supported e-mail provider. The application supports multiple e-mail accounts. With this tool, you can import individual e-mails in .eml format to your existing .mbox file.
You may want to check out more software for Mac, such as Macflick Mac MBOX Converter, MBOX Breaker Trial or MBOX Breaker, which might be related to MBox Office.
E-mail Tools
E-mail Tools