concretesubmarine.com/ FORUM

If you want to migrate your Thunderbird files to Outlook 365 then here is the best article for yours Migrate From Thunderbird To Outlook 365. This article will provide you with a complete manual solution to migrate the process. Additionally, they will also provide an advanced solution Thunderbird Backup Tool.  With the help of this utility that saves your Thunderbird mailbox to PST, PDF, EML, EMLX, MSG, CSV, etc. They allow you to save your email attachments separately. It supports all versions of the Windows operating system. You can try the trial version of the software to analyze the performance.