Using Softaken Thunderbird to Outlook Converter you will get a risk-free solution to transfer Thunderbird files to Outlook with complete mailbox data and all other features. It is a highly recommended utility when it comes to large-scale migration of Thunderbird files to Outlook PST file format due to its many features. The software is fully licensed and secure so both technical and non-technical users can safely use this tool. Fully supported for both Windows OS and Microsoft Outlook versions.

Consider the Aryson Thunderbird Backup Tool for a reliable and user-friendly email backup solution. This affordable and secure software ensures easy email preservation, making it ideal for both individuals and businesses. Supporting various file formats such as PST, PDF, EML, EMLX, JSON, and CSV, the tool offers flexibility in saving Thunderbird emails. Moreover, it facilitates seamless transfers of Thunderbird mailboxes to popular services like Gmail, Outlook, Office 365, Yandex Mail, Zoho Mail, and others. With its versatility, the tool safeguards your emails and ensures smooth transitions across different platforms. Whether you're securing your data or migrating effortlessly to a new email service, the Thunderbird Backup Tool provides a user-friendly and comprehensive solution, guaranteeing the safety and accessibility of your valuable email data.

I suggest using TrustVare MBOX to PST Converter to convert Thunderbird emails to PST format. Most of these services transfer email from Thunderbird MBOX to Outlook PST file. Both technical and non-technical users find the application user-friendly. Several different email clients are supported in this application. Many email clients are compatible with it. Since the tool is completely secure, no data is lost during the transition.