Undo conversion made by `mutt`.
<exit><Home><change-folder>=sent-mail<Enter> \
"Go to sent-mail"
+macro attach 8 "<pipe-message>iconv.py -t utf-8 | webstdin<Enter>" \
+ "View html attachment in a web browser (convert back to utf-8)"
+macro attach U "<pipe-message>iconv.py -f utf-8 | webstdin<Enter>" \
+ "View html attachment in a web browser (convert from utf-8)"
macro attach V "<pipe-message>webstdin<Enter>" \
"View html attachment in a web browser"