(defun notmuch-show-insert-part-application/octet-stream (msg part content-type nth depth declared-type)
;; If we can deduce a MIME type from the filename of the attachment,
;; do so and pass it on to the handler for that type.
(defun notmuch-show-insert-part-application/octet-stream (msg part content-type nth depth declared-type)
;; If we can deduce a MIME type from the filename of the attachment,
;; do so and pass it on to the handler for that type.