CubexSoft Thunderbird Converter is a special utility to help the users to successfully transfer all the Thunderbird emails directly to PST format without any data loss. It best for people who need accurate formatting, want attachment preservation or have large mailboxes. This create your folder in other many popular formats including MBOX, PST, PDF, MSG, EML, etc. if you find it interesting then you can just try a free trail and export up to 20 emails per folder.