To convert a PST file to MBOX format, you can use either a manual method or the BLR PST File Converter Tool. The manual method requires importing the PST file into Mozilla Thunderbird with the ImportExportTools add-on, which can be time-consuming and may not fully preserve data in large files.
The BLR PST File Converter Tool offers a more efficient option, converting PST files directly to MBOX without requiring Outlook or Thunderbird. It preserves email format, attachments, and folder structure, making conversion quick and accurate with just a few clicks.