How can I tell if the other person has received my email?

Found HTML in received email to make forward emails back to the scammer, how to tell where email actually sent

• Been getting scam emails from "monster.com", when tried to forward it to "[email protected]" to report it, the email was never sent to "[email protected]", but it was sent back to the scammer, which kept re-generating more such scam emails everyday. In yahoo-email, how can one tell where the email was actually sent to? The sent file folder does not help since it shows the address entered.

• Answer:

  if you right click on the email link and go to properties it might tell you where it was sent from with more information.