Outlook to MBOX Exporter is a free utility that exports email messages from Outlook to MBOX files, preserving the source folder hierarchy. The tool rapidly copies all Outlook emails to MBOX files while maintaining the original folder structure.

One of the best things about this program is that it can quickly copy emails from Outlook to MBOX files while preserving the folder hierarchy. It creates the same Outlook folder structure on your disk or network share, where each folder gets stored in a separate MBOX file. This feature makes it easier for users to access their emails even after they have been transferred.
Another useful function of this software is that it allows users to delete or move successfully exported messages to specified Outlook folders. This feature ensures that the export process can be run multiple times without creating duplicates. Thus, it saves you time and effort that you would otherwise have spent on manual sorting.
Additionally, the command line feature of this program enables users to launch the utility in various scripts and batch files. As a result, it becomes an excellent choice for those who want to automate the migration of Outlook and Exchange mailboxes to MBOX files. Overall, this utility offers a great combination of features, usability and flexibility for users looking for a way to export their emails from Outlook to MBOX files.
Version 4.11: New features and enhancements.