Thanks for your quick response. I think the icon looks much better in #45.
But since the gear is positioned flat, the asymmetrical white cutout looks a but strange to me. If you ask me, the gear should either be drawn more like a ellipse, to simulate a slight rotation (like the globe). Or the outer side of the gear should be evenly thick around (when it is positioned flat), maybe using a fade out to white where the envelope sticks out.
What do you think?