Converting OST to MBOX format helps users access their Outlook data in email clients like Thunderbird and Apple Mail. While there's no direct manual method, a two-step process can be followed:
- Convert OST Files to PST
- Convert PST files to MBOX format.
For a simpler and faster solution, use the Microsoft OST to PST Converter, which directly converts OST to MBOX without data loss. It supports bulk conversion, previews data before exporting, and maintains folder hierarchy, making it ideal for seamless migration. You can download and try the demo version for free.