From: MAILER-DAEMON@yahoo.com
To: user@bellsouth.net
Date: Wed, 20 Feb 2013 15:50:26 -0000
Subject: Failure Notice

Sorry, we were unable to deliver your message to the following address.

<bad_user@aol.com>:
Remote host said: 550 5.1.1 <bad_user@aol.com>: Recipient address rejected: aol.com [RCPT_TO]

--- Below this line is a copy of the message.

The following should not be found as we should have stopped looking.

<bogus@dont.find.me.invalid>: