Many users face issues when trying to open Outlook PST files in Thunderbird because Thunderbird does not support the PST format directly. SysInfo PST to MBOX Converter is designed to resolve this problem by converting Outlook PST files into MBOX format, which is fully supported by Thunderbird and other email clients. The tool provides a Batch Conversion Feature, which allows users to convert multiple PST files at once without repeating the process again and again, making it useful for large mailbox migrations. Another important feature is the Date Range Filter, which helps users convert only selected emails between specific dates instead of converting the entire PST file, saving time and storage space. The software also includes the Remove Duplicate Mail Option, which ensures that duplicate emails are skipped during conversion, resulting in clean and organized MBOX files. During conversion, the tool keeps folder hierarchy, attachments, and formatting the same, so the converted mailbox looks identical to the original Outlook data.
