The original message was received at Mon, 6 Oct 2008 09:51:35 -0700
from lb.z57.com [209.75.14.120]
----- The following addresses had permanent fatal errors -----
<ad@jdjlkj.com>
(reason: 550 Host unknown)
----- Transcript of session follows -----
550 5.1.2 <ad@jdjlkj.com>... Host unknown (Name server: jdjlkj.com: host not found)