The original message was received at Sun, 10 Feb 2008 23:44:00 -0800
from lb.z57.com [209.75.14.120]
----- The following addresses had permanent fatal errors -----
<robert@yahoo.com>
(reason: 553 VS10-RT Possible forgery or deactivated due to abuse (#5.1.1) robert@yahoo.com)
----- Transcript of session follows -----
... while talking to d.mx.mail.yahoo.com.:
>>> DATA
<<< 553 VS10-RT Possible forgery or deactivated due to abuse (#5.1.1) robert@yahoo.com
550 5.1.1 <robert@yahoo.com>... User unknown
<<< 504 At least one RCPT command is required