Comment 6 for bug 729357

I think the information you need is in the /usr/share/applications/evolution.desktop file . Use the Ubuntu one because it looks to me like it has a few extra lines that have the Messaging Menu specific stuff. I'll go ahead and attach it because I don't know if you have a Natty install around.

I think Send by Email was present in previous Gnome 2 releases but isn't in Gnome 3.