유독 한메일에서만 호스트네임을 찾을수 없다고 나오네요..
다음과 같은 메세지와 함꼐 리턴되어 돌아옵니다.


The original message was received at Thu, 10 Oct 2002 10:41:26 +0900
from www23.hanmail.net [211.32.117.203]

----- The following addresses had permanent fatal errors -----
<****@****>

----- Transcript of session follows -----
<****@****>... Deferred: Name server: 2002culture.or.kr: host name lookup failure
Message could not be delivered for 1 hour
Message will be deleted from queue

Reporting-MTA: dns; smail-102.hanmail.net
Arrival-Date: Thu, 10 Oct 2002 10:41:26 +0900

Final-Recipient: RFC822; ****@****
Action: failed
Status: 4.4.7
Remote-MTA: DNS; 2002culture.or.kr
Last-Attempt-Date: Thu, 10 Oct 2002 11:44:59 +0900