Is there any way to return the unsolicited email to the sender? Any service provider adopted such mechanism?

Some like Yahoo/Google provide "deleting, marking as spam, report spam, permanent deletion etc., options for avoiding unsolicited emails which have porno and nonsense contents.


But imagine how it would be if we have the option of throwing back the dirty mail on the sender's face by 'return to the sender'. If such a facility can be offered, one addition can be made - to kick back their next mails automatically, though they may come up new email ids. This may definitely discourage the foul people since their mail box will bulge by the rejects. And we may have a small satisfaction.
Is there any way to return the unsolicited email to the sender? Any service provider adopted such mechanism?
Great idea. But I already did it. Guess what? Now the Spammers send me more. They sold my email address to more Spammers as being a live email address. So I give my Spam to SpamCop and they shut them down one by one. Try that. Its Free.