Subject: Delivery reports about your e-mail

From: "Mail Administrator" <[email-masked]>
Date: Mon, 11 Jul 2005 21:47:08 +0200

The original message was received at Mon, 11 Jul 2005 21:47:08 +0200
from ietf.org [199.54.157.10]

----- The following addresses had permanent fatal errors -----
<[email-masked]>

----- Transcript of session follows -----
... while talking to mail server ietf.org.:
>>> MAIL FROM:"Mail Administrator" <[email-masked]>
<<< 503 Refused