If you need to Migrate Thunderbird to Outlook, then attempt eSoftTools Thunderbird to outlook converter tool, It can quickly export Thunderbird mbox to PST file without any alteration in its email formatting, bcc, cc, emails header, dates and attachment
file, etc. It has facilities to auto-load Thunderbird mbox files for conversion. This is the most reliable MBOX converter tool. It can support all editions of MS Outlook 2019, 2016, 2013, 2010, 2007, & 2003.
For more info:-
https://www.esofttools.com/thunderbird-to-outlook-converter.html
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