메일(sendmail)에 대한 문의 입니다..
 제가 SMTP서버를 만들었습니다.. 고정ip를 사용하고 있고요..
 그러니까 한 서버에 웹서버와 Smtp서버로 사용하려 합니다...
 웹서버도메인은 Dns에 등록된 상태입니다. 한개의 ip로 웹서버와 smtp서버
 로 사용하려 합니다..
 Isp업체에 문의를 해보니 Smtp서버는 따로 Dns에 등록을 할 필요가 없다고
 했는데 ... 맞는 말인가요.. 그냥 Smtp서버를 만들기만 하고 멜을 보내면
 되는 건가요?
 그런데 메일을 보내면 사내망에서는 되는데 ... 외부로는 메일 발송이 않됩니
다..
 외부로 메일을 발송시 다음과 같은 메세지가 나옴니다..
 From root  Mon Nov 26 17:58:44 2001
Date: Mon, 26 Nov 2001 17:58:44 +0900
From: Mail Delivery Subsystem <MAILER-DAEMON at localhost.localdomain>
To: root at localhost.localdomain
MIME-Version:1.0
Content-Type: multipart/report; report-type=delivery-status;
        boundary="fAQ8wiV01900.1006765124/localhost.localdomain"
Subject: Returned mail: see transcript for details
Auto-Submitted: auto-generated (failure)
 This is a MIME-encapsulated message
 --fAQ8wiV01900.1006765124/localhost.localdomain
 The original message was received at Mon, 26 Nov 2001 17:58:43 +0900
from root@localhost     ----- The following addresses had permanent fatal errors -----
kyj2000 at hanmir.com
    (reason: 501 <root at localhost.localdomain>... Sender domain must
exist)
    ----- Transcript of session follows -----
... while talking to rmail3.hanmir.com.:
>>> MAIL From:<root at localhost.localdomain> SIZE=40
<<< 501 <root at localhost.localdomain>... Sender domain must exist
501 5.6.0 Data format error
 --fAQ8wiV01900.1006765124/localhost.localdomain
Content-Type: message/delivery-status
 Reporting-MTA: dns; localhost.localdomain
Arrival-Date: Mon, 26 Nov 2001 17:58:43 +0900
 Final-Recipient: RFC822; kyj2000 at hanmir.com
Action: failed
Status: 5.5.2
Diagnostic-Code: SMTP; 501 <root at localhost.localdomain>... Sender domain
must ex
ist
Last-Attempt-Date: Mon, 26 Nov 2001 17:58:44 +0900
 --fAQ8wiV01900.1006765124/localhost.localdomain
Content-Type: message/rfc822
 Return-Path:<root>
Status: 5.5.2
Diagnostic-Code: SMTP; 501 <root at localhost.localdomain>... Sender domain
must ex
ist
Last-Attempt-Date: Mon, 26 Nov 2001 17:58:44 +0900
--fAQ8wiV01900.1006765124/localhost.localdomain
Content-Type: message/rfc822
 Return-Path:<root>
Received:(from root@localhost)
        by localhost.localdomain (8.11.6/8.11.6) id fAQ8whW01897
        for kyj2000 at hanmir.com; Mon, 26 Nov 2001 17:58:43 +0900
Date: Mon, 26 Nov 2001 17:58:43 +0900
From: root <root>
Message-Id:<200111260858.fAQ8whW01897 at localhost.localdomain>
To: kyj2000 at hanmir.com
Subject: hi
 hi
  --fAQ8wiV01900.1006765124/localhost.localdomain--
  김정균님 무엇이 잘못되서 않되는지 잘 모르겠습니다..
 알려주시면 감사하겠습니다.. 그럼 즐거운 하루 되세요