(add-to-list 'mu4e-view-actions '("ViewInBrowser" . mu4e-action-view-in-browser) t)
Now, when viewing such a difficult message, type aV, and the message opens
inside a webbrowser. You can influence the browser with
browse-url-generic-program; and see Privacy aspects.
(require 'epg-config) (setq mml2015-use 'epg epg-user-id "gpg_key_id" mml2015-encrypt-to-self t mml2015-sign-with-sender t)
M-x mu4e-compose-resend. This gives you a raw copy of the message, including all headers, encoded parts and so on. Reason for this is that for resending, it is important not to change anything (except perhaps for the ’To:’ address when bouncing); since we cannot losslessly decode an existing message, you get the raw version.