Re: I too have other people using my email addresses
I had a bunch of people in Brazil using email addresses with my domain name to sign up with Facebook.
There seems to be no way to get FB to cancel these accounts, it is not even possible to report them, and FB doesn't even have an abuse@ email. I had set up a Procmail recipe to forward the stuff to all corporate FB addresses I could find, but nothing changed.
I ended up changing the passwords of these accounts, logged in, and deactivated them. Some tried to change the passwords back, but never got the confirmation email...
Eventually, the idiots stopped.