Question 4.6

I’d like Gnus NOT to render HTML-mails but show me the text part if it’s available. How to do it?

Answer

Say

(with-eval-after-load "mm-decode"
  (add-to-list 'mm-discouraged-alternatives "text/html")
  (add-to-list 'mm-discouraged-alternatives "text/richtext"))

in ~/.gnus.el. If you don’t want HTML rendered, even if there’s no text alternative add

(setq mm-automatic-display (remove "text/html" mm-automatic-display))

too.