Submitted for your amusement (technical help is not needed) ...
 
Here's my submission for the confusing "bounce-of-the-day" contest.
Note that the failing USERID is not given.        Arrggh!
Also, note that the FQDN is abbreviated to 'J'.   Arrggh!
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Date:         Wed, 10 Feb 1993 20:41:10 -0500
Subject:      secret-L: error report from J
X-LSV-ListID: None
 
------------------------- Message in error (18 lines) -------------------------
Received: from syj1 (j.az05.bull.com) by mailsrvr.az05.bull.com with SMTP
          (5.65c/021192-1-1) id AA09122; Wed, 10 Feb 1993 18:42:04 -0700
Received-Date: Wed, 10 Feb 1993 18:42:04 -0700
Date:          Wed, 10 Feb 93   18:33:38   MST
From:          Postmaster@j
Sender:        Postmaster@j
Subject:       Undeliverable mail
Message-Id:    <1>
To:            secret-l
 
Message denied by user (return to sender).
---