When you try a manual way to transfer emails from Thunderbird to Outlook then you know it is completely useless. Because in this method, users need an internet connection, email clients, and technical knowledge.

To prevent data loss, try MailsDaddy Thunderbird to Outlook Converter tool to open emails from Thunderbird to Outlook PST format. You can install the solution on different Windows OS and migrate bulk mailboxes from Thunderbird to PST, EML, MSG, HTML, etc. It comes with the free demo edition of the software, users can open a few emails from each folder.

Read more: Migrate Thunderbird emails to Outlook PST