With using CubexSoft Thunderbird Converter you can converts entire mailboxes in minutes. This tool is specially designed in a way that keeps attachments, inline images, and metadata intact and it assures no risk of data loss maintains structure and formatting perfectly. Using this tool is very simple and features a simple interface which helps with no technical skills needed simple interface suitable for everyone. And if convert to other file format then this tool has many options and some of them are MBOX, PST, PDF, Outlook, EML and many more. To try how it works you can download the free trail to transfer up to 20 emails.