I don’t know where do you find solutions for Thunderbird to Outlook conversion, but if you haven’t done so yet then go with MailsDaddy Thunderbird to Outlook converter tool. This professional application software easily transfers data from Thunderbird to PST, EML, MSG, etc. This GUI application software has many useful features that allow the user to convert a single or selected mailbox from MBOX to Outlook PST format.
The software supports both Thunderbird MBOX and Maildir file formats as well as it is compatible with all Windows-based operating systems. A trial version of the tool exports 20 emails from each mailbox.
For complete information, visit here:- Thunderbird to Outlook Converter