Are you looking for a solution to copy mail from Outlook to Thunderbird? If your answer is yes, then you can use a perfect PST to MBOX Converter software that helps user to easily copy mail from Outlook to Thunderbird without Outlook installation. The software comes with preview facility to view all the loaded data items before final process. It allows user to batch copy mail from Outlook to Thunderbird email client without any data loss. This software supports all the latest and below versions of MS Outlook and Windows OS. Demo version of the software also provided at free of cost.