Variable: mm-verify-option
mm-verify-option is a customizable variable defined in
mm-decode.el.gz.
Value
never
Documentation
Option of verifying signed parts.
never, not verify; always, always verify;
known, only verify known protocols. Otherwise, ask user.
When set to always or known, you should add
"multipart/signed" to gnus-buttonized-mime-types to see
result of the verification.
This variable was added, or its default value changed, in Emacs 22.1.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/mm-decode.el.gz
(defcustom mm-verify-option 'never
"Option of verifying signed parts.
`never', not verify; `always', always verify;
`known', only verify known protocols. Otherwise, ask user.
When set to `always' or `known', you should add
\"multipart/signed\" to `gnus-buttonized-mime-types' to see
result of the verification."
:version "22.1"
:type '(choice (item always)
(item never)
(item :tag "only known protocols" known)
(item :tag "ask" nil))
:group 'mime-security)