Ok, so I'm not looking to find out why, I'm curious if there's a new 0day exploit or something with gmail.
When I tried to view the image URL it's showing me the URL as:
Is there uh... a reason why it's trying to pull up something from gmail?
If you goto the thread and view the image url that should be exactly what you see.
I don't know if the guy had a picture in his email and just right-click and copied it or if it's a new explit?