nslookup 의 결과입니다.
 Non-authoritative answer:
Name:   Domain-name
Address:  XXX.XXX.XXX.XXX
  그리고 named의 내용입니다.
; zone-file
;
@       IN      SOA     XXX.com. root.XXX.com. (
                        000904   ;Serial
                        10800    ;Refresh
                        3600     ;Retry
                        2592000  ;Expire
                        86400)  ;Minimum
;
                IN      NS      XXX.com.
                IN      A       XXX.XXX.XXX.XXX
                IN      MX 100  XXX.com.
;
; Host Addresses
;$ORGIN ubf.org
;
localhost       IN      A       127.0.0.1
 YYY         IN      A       XXX.XXX.XXX.XXX
www.YYY     IN      A       XXX.XXX.XXX.XXX
 그리고 다음은 에러메시지입니다.
 The original message was received at Thu, 28 Sep 2000 11:50:30 +0900
from [XXX.XXX.XXX.XXX]
    ----- The following addresses had transient non-fatal errors -----
<hanmaum at YYY.XXX.com>
    ----- Transcript of session follows -----
<hanmaum at YYY.XXX.com>... Deferred: Name server: YYY.XXX.com.: host name lookup failure
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
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