Comment 9 for bug 708382

This also affects other mail applications like gnome-gmail (bug #729357) and desktop-webmail since neither can set themselves as the default mail application - at the moment there is a patch for gnome-gmail in the attached bug, but it would seem a better solution would be to fix this in gnome-control-center so all apps work like they did previously, rather than having to patch each app's desktop file individually.