The original message was received at Wed, 20 Nov 2002 11:03:16 +0900
from [211.43.196.84]
 ----- The following addresses had permanent fatal errors -----
<ykkim at medaixxxx.co.kr>
(reason: 550 Host unknown)
 ----- Transcript of session follows -----
550 5.1.2 <ykkim at medaixxxx.co.kr>... Host unknown (Name server: medaixxxx.co.kr: host not found)
 Reporting-MTA: dns; smail-108.hanmail.net
Arrival-Date: Wed, 20 Nov 2002 11:03:16 +0900
 Final-Recipient: RFC822; ykkim at medaixxxx.co.kr Action: failed
Status: 5.1.2
Remote-MTA: DNS; medaixxxx.co.kr
Diagnostic-Code: SMTP; 550 Host unknown
Last-Attempt-Date: Wed, 20 Nov 2002 11:03:19 +0900
  이렇게 에러 메시지가 뜨는데요.. 왜이러죠?
그런데 다른사람 계정으로 하면 들어가요.. 그러니깐
pegasusi at mediaxxxx.co.kr로 daum에서 보내면 잘 오는데요..