How do I disable automatic translation of Thunderbird messages by Deep-L (or any other machine translator)? This morning I received an email from a family member, written in German. Underneath the original message was an automated translation into English by Deep-L. I didn´t ask for this translation. I speak German as a second language, as well as other languages, and I enjoy using my linguistic abilities. Furthermore, I don´t like my private messages being passed to a database without my permission. If I want a translation of a message, I´ll ask for it. This is evidently a new, annoying feature. I had an email exchange in German with someone just a few weeks ago without this intervention. I have tried searching the settings tab on Thunderbird, but have not discovered anything about Translation settings (not under Language settings, as far as I can see). How do I disable Thunderbird sending emails for unwanted translation? Thank you for your assistance.