Softaken PST to MBOX Converter is a Windows-based email migration tool designed to convert Outlook PST files into MBOX format with attachments and folder structure intact. It helps users move PST mailbox data to MBOX-supported email clients such as Thunderbird, Apple Mail, Entourage, and Eudora. The software supports selective conversion, preview options, and safe PST to MBOX migration without changing original email properties.