I have been using Mozilla Thunderbird for a few years, and recently I started using Microsoft Outlook for work. Now I need to transfer all my Thunderbird emails to Outlook, but I am looking for a free solution because I do not want to buy any paid tools. I have tried some manual methods, like saving emails as EML and importing them into Outlook, but it is very time-consuming, especially since I have thousands of emails across multiple folders. Does anyone know a reliable and completely free way to export Thunderbird emails to PST format without losing folder structure or attachments?
Answers
Free methods are not safe to convert Thunderbird to Outlook PST. It's time-consuming and risky process.
If you've been searching for an easy method to export Thunderbird files into Outlook without data loss, I suggest the WholeClear Thunderbird to PST Converter. Its graphical user interface is easy to understand, allowing it to rapidly convert data from Thunderbird to Outlook PST format and provide effortless conversion from Thunderbird to PST format. Install the software on various Windows operating systems like - 11, 10, 8.1, 8, 7, XP, and Vista. Even this software has free demo features that convert a few Thunderbird files to PST for free.
allacrook
@allacrook
May 21,2026 At 07:58 PM
Solution #1