아래와 같은 에러 메세지가 리턴메일로 오네요..dns,mail 설정을 바꿨는데
정확히 무엇을 손대야 하는지 모르겠네요..
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The original message was received at Mon, 23 Apr 2001 10:24:35 +0900
(KST)
from elim.net [203.239.130.5]
    ----- The following addresses had permanent fatal errors -----
<webmaster at korea.co.kr>
    ----- Transcript of session follows -----
553 mail.nammi.co.kr. config error: mail loops back to me (MX problem?)
... while talking to mail.naturaldna.co.kr.:
>>> RCPT To:<webmaster at korea.co.kr>
<<< 450 4.7.1 <webmaster at korea.co.kr>...
Relaying temporarily denied.
Cannot resolve PTR record for 210.205.11.199
<webmaster at 4everything.co.kr>...
Deferred: 450 4.7.1 <webmaster at korea.co.kr>...
Relaying temporarily denied.
Cannot resolve PTR record for 210.205.11.199
 --