Randy, I too used a unique email address in my domain when I subscribed and received the IB traveldeals SPAM to that email address. For the technically minded here is the header from the email that shows it came from internetbrands:

Received: from trav-mktg.internetbrands.com (mail.ibtraveldeals.com [207.212.174.236])
by barclay.textdrive.com (Postfix) with SMTP id A50C5FBC9C
for <[email protected]>; Wed, 17 Oct 2007 14:32:47 +0000 (GMT)