아침부터 갑자기 안되는 메일을 어떻게 해석해야 될지..
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host 를 못찾겠다고 하는데.. ping naraetech.com 하면 제대로 나옵니다.
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저희 회사에서 외부로 보낼때 Outlook 으로 되돌아온 편지 에러 입니다
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 ----- The following addresses had permanent fatal errors -----
<control1 at dreamwiz.com>
    (reason: 501 5.1.8 <janghoon at naraetech.com>... Sender domain must
exist)
    ----- Transcript of session follows -----
... while talking to ab.mx-r.dreamwiz.com.:
>>> MAIL From:<janghoon at naraetech.com> SIZE=1289
<<< 501 5.1.8 <janghoon at naraetech.com>... Sender domain must exist
501 5.6.0 <control1 at dreamwiz.com>... Data format error
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외부에서 저희 회사로 보낼때 reply 되서 나오는 메시지 입니다.
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 The original message was received at Fri, 9 Mar 2001 17:54:39 +0900
(KST)
from mail12.dreamwiz.com [211.174.54.32]
 
   ----- The following addresses had permanent fatal errors -----
<janghoon at naraetech.com>
    (reason: 550 Host unknown)
 
   ----- Transcript of session follows -----
550 5.1.2 <janghoon at naraetech.com>... Host unknown (Name server:
naraetech.com: host not found)