----- The following addresses had permanent fatal errors -----
<****@****>
(reason: 550 5.7.1 Unable to relay for ****@****)

----- Transcript of session follows -----
... while talking to cjmct.or.kr.:
>>> DATA
<<< 550 5.7.1 Unable to relay for ****@****
550 5.1.1 <****@****>... User unknown
<<< 554 5.5.2 No valid recipients

Reporting-MTA: dns; smail-5.hanmail.net
Arrival-Date: Mon, 23 Dec 2002 12:56:53 +0900

Final-Recipient: RFC822; ****@****
Action: failed
Status: 5.7.1
Remote-MTA: DNS; cjmct.or.kr
Diagnostic-Code: SMTP; 550 5.7.1 Unable to relay for ****@****
Last-Attempt-Date: Mon, 23 Dec 2002 12:57:03 +0900

한메일에서 발신된 메일 에러 입니다.