If you are searching for the solution for the question How to transfer Thunderbird emails to Gmail. Then I recommend you utilize the only eSoftTools Tool. It can quickly export Thunderbird mbox files to various file formats such as EML, EMLX, NSF, HTML, MSG, Office365, GMAIL, and YAHOO. This tool also comes with free demo editions in which users can convert the first 25 items Thunderbird to PST.

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