A free utility that splits large MBOX files into individual EML format message files, allowing for easy management, searching, sharing, and importing into various email clients. Conveniently work with the files directly in Windows Explorer.

The MBOX format is not supported by most email programs, and it can be challenging to work with large MBOX files. Most messages in this format are contained in a single file, which can be very large, up to tens of gigabytes. Furthermore, various message databases in MBOX format are no longer supported by modern email clients, making them outdated and rare.
A more practical and efficient way of migrating old messages to new email programs is by converting them to EML format. This utility can easily convert multiple MBOX files at once, and create a new folder for each converted file. If you have nested folders, the program also creates a similar folder structure for the resulting EML message files.
For those migrating many mailboxes in different folders, the software provides a command line feature that allows you to convert MBOX to EML in batch mode. Thanks to this feature, you can easily configure and execute any variants of the conversion process to save you both time and effort.
In conclusion, if you are looking for efficient software that can manage large MBOX message database files, this utility is a great solution that can help you convert them to EML format for ease of use across different email clients.
Version 4.11: New features and enhancements.