Buttonize PGP signatures in Gnus

* emacs.d/mail.org: Buttonize multipart/{signed,encrypted}

emacs.d/mail.org

@@ -301,6 +301,16 @@ id.
   (setq mm-verify-option 'always)
 #+END_SRC
 
+Signature verification doesn't really help me if I can't see that it's
+signed to begin with.  In Gnus, it seems that the easiest way to do this is
+to "buttonize" it, which will delimit the part that is signed.
+
+#+BEGIN_SRC emacs-lisp
+  (setq gnus-buttonized-mime-types
+        '("multipart/signed"
+          "multipart/encrypted"))
+#+END_SRC
+
 *** Message Formats
 I like plain text.  It is the universal language: all standard Unix
 utilities are made to operate on plain text; they can be manipulated