I sent an email to a friend this morning. It had a 2.38 meg attachment with it. They got it fine but I got an "Undelivered Mail Returned to Sender" but not from them. It was from someone else which I don't understand because I didn't send it to them and it was not forwarded to that person knowingly by who I was sending it to. My question is has my friend been hacked and all their email being forwarded to this other person? Here is a screen shot of what I got back.