As a workaround, you can replace exo-open with gvfs-open which does work correctly. The required package for this is gvfs-bin. For example, Google Chrome uses /usr/bin/xdg-email, so you'd change exo-open to gvfs-open there.
Cheers, Alad -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org