I use a catch-all address on my domain, because I sign up at various web sites using a different e-mail address at my domain, and I like to see where my spam is coming from. So far, so good. There are a couple of addresses I want to "shut down," however, but it seems that Dreamhost only gives me the option of having e-mail sent to those addresses deleted without notifying the sender. That's not what I want; I want the sender notified with a "bounce-like" message, and the message sent to me to be deleted. Is there a way to do this?