mh-folder-save-mime-part
mh-folder-save-mime-part is an interactive autoloaded compiled Lisp function in `mh-mime.el
'.
(mh-folder-save-mime-part PART-INDEX)
Save (output) attachment.
This command saves the attachment associated with the button under the
cursor. If the cursor is not located over a button, then the cursor
first moves to the next button, wrapping to the beginning of the
message if necessary.
You can also provide a numeric prefix argument PART-INDEX to save the
attachment labeled with that number.
This command prompts you for a filename and suggests a specific name
if it is available.