The original message was received at Sun, 9 Nov 2008 20:07:44 -0800
from lb.z57.com [209.75.14.120]
----- The following addresses had permanent fatal errors -----
<e@e.com>
(reason: 550 Host unknown)
----- Transcript of session follows -----
550 5.1.2 <e@e.com>... Host unknown (Name server: e.com: host not found)