[MM3-users] disable body transcoding

Hi,

I have disabled all message modifications and filtering from within the webUI, and created empty header and footer template files. Still, some list messages get their body encoding changed to base64, breaking DKIM. What can I do to prevent this? (I'm a newbie to mailman3, so please give somewhat complete commands. I have read other threads with similar questions, but did not understand some shortened configuration commands.)

BR