If you are looking for a Thunderbird to Outlook converter to export Thunderbird emails to PST files, then utilize the most popular eSoftTools Thunderbird to Outlook converter. It has excellent specialties that export single or bulk Thunderbird mbox files to various file formats such as EML, EMLX, NSF, HTML, MSG, Office365, GMAIL, and YAHOO. It can offer a live preview of the Thunderbird profile and folders before beginning the conversion procedure. It gives a free trial version in which users can export the first 25 things from Thunderbird to PST.
For more info- https://www.esofttools.com/thunderbird-to-outlook-converter.html
If you are looking for MBOX to Office 365 Converter software, try Sysinspire MBOX Converter software, which instantly exports all data from an MBOX mailbox to an office 365 without any changes to its formats, styles, email headers, and so on. The folder structure cannot be changed during the MBOX to Office 365 conversion. It can convert Thunderbird files to Outlook PST, MSG, EML, EMLX, Yahoo, Office 365, GMAIL, and HTML formats.