The best way to import PST to Thunderbird is via the
TrustVare PST to MBOX Converter Tool since it is based on utilizing the MBOX file format which is supported by Thunderbird. This very tool gets your PST files directly into MBOX file format which can in the quickest and most accurate way bring the importing through. This conversion makes it very easy for you to convert your entire Outlook emails with attachments into MBOX format without any data loss. The folder hierarchy, email formatting, and even any metadata will not be affected as a result of the conversion process. Another wonderful feature of this excellent software is that you do not have to have Microsoft Outlook on your computer.
How to use TrustVare PST to MBOX Converter Tool to import PST into Thunderbird:
1. Download TrustVare PST to MBOX Converter and install it on your PC.
2. Launch the software and attach PST files.
3. Choose an MBOX format to perform email conversion.
4. Select a target destination for saving the converted file.
5. Hit on Convert and the conversion process will commence.
Visit here:
https://www.trustvare.com/pst/mbox/