I recommend the safe and secure software to easily migrate Thunderbird file to Outlook
so you will try KDETools
software Thunderbird Converter with a specific feature.
• This software support MBOX files of more than 20+ email applications, including Apple Mail, Pocomail. Eudora, Spicebird,
Entourage, Google takeout, Netscape, SeaMonkey, and many more.
• It has reliable features like batch conversion, split feature, message filtering, multiples file formats, multiples email
clients, an email server, Gmail, G Suite, Google Drive, and etc.
• Thunderbird converter is specialized for adding Meta-properties like attachments, To, CC, BCC and From
• It supports all Windows versions like 10, 8, 7, XP