Date: Thu, 29 Apr 1995 23:34:45 +0000
From: Mail Delivery Subsystem <MAILER-DAEMON@NEKO.EXAMPLE.ORG>
Subject: Returned mail: User unknown
To: <sironeko-nyaan@NEKO.EXAMPLE.ORG>
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
       boundary="AAA00000.0000110222/NEKO.EXAMPLE.ORG"
--AAA00000.0000110222/NEKO.EXAMPLE.ORG
content-type: text/plain; charset=us-ascii
       ----- The following addresses had delivery problems -----
<kijitora@nyaan.example.com> (unrecoverable error)
<mikeneko@neko.example.or.jp> (unrecoverable error)
 --AAA00000.0000110222/NEKO.EXAMPLE.ORG
content-type: message/delivery-status
Reporting-MTA: dns; cs.utk.edu
Original-Recipient: rfc822;kijitora@nyaan.example.com
Final-Recipient: rfc822;kijitora@nyaan.example.com
Action: failed
Status: 5.0.0 (permanent failure)
Diagnostic-Code: smtp;  550 'kijitora@nyaan.example.com' is not a
 registered gateway user
Remote-MTA: dns; nyaan.example.com
Original-Recipient: rfc822;sabatora@cat.example.net
Final-Recipient: rfc822;sabatora@cat.example.net
Action: delayed
Status: 4.0.0 (cat.example.net: host name lookup failure)
Original-Recipient: rfc822;mikeneko@neko.example.or.jp
Final-Recipient: rfc822;mikeneko@neko.example.or.jp
Action: failed
Status: 5.0.0
Diagnostic-Code: smtp; 550 user unknown
Remote-MTA: dns; neko.example.or.jp
--AAA00000.0000110222/NEKO.EXAMPLE.ORG
content-type: message/rfc822