Variable: mm-html-blocked-images
mm-html-blocked-images is a customizable variable defined in
mm-decode.el.gz.
Value
""
Documentation
Regexp matching image URLs to be blocked, or nil meaning not to block.
Note that cid images that are embedded in a message won't be blocked.
This variable was added, or its default value changed, in Emacs 25.1.
Probably introduced at or before Emacs version 25.1.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/mm-decode.el.gz
(defcustom mm-html-blocked-images ""
"Regexp matching image URLs to be blocked, or nil meaning not to block.
Note that cid images that are embedded in a message won't be blocked."
:version "25.1"
:type '(choice (const :tag "Allow all" nil)
(regexp :tag "Regular expression"))
:group 'mime-display)