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▷ 제품버젼 : nmail server 3.8

▷ 오류발생 메뉴/주소 : 송신

▷ 에러메세지 : --------------------- 원문 내용 ---------------------
From: dooriinfo.com PostMaster
Subject: Send error 451 you are greylisted (2)




Error Message : 451 you are greylisted (2) [****@****]

-- You SendMail --

>> Received: from mail.jwtech.co.kr (220.125.208.226)
>> by dooriinfo.com (220.125.208.226) with [Nmail V3.8 20071121(ST)]
>> for <****@****>from <****@****>;
>> Thu, 04 Mar 2010 14:16:21 +0900
>> Message-ID: <***-****-****608609$17678830$****@****>
>> From: =?ks_c_5601-1987?b?wfa/7MXYsPy4rsDa?= <****@****>
>> Subject: =?ks_c_5601-1987?b?vsiz58fPvLy/5CAowdYpwfa/7MXYIMDMvcK/rML3wOUgwNS0z7TZLiA=?=
>> To: ****@****
>> MIME-Version: 1.0
>> X-Mailer: Passkorea.net NMail Server
>> Date: Thu, 04 Mar 2010 14:16:08 +0900
>> Content-Type: multipart/mixed;
>> boundary="----=_Nmail_boundary_Webmailer"

▷ 질문내용 : 어떤내용인지요.. 해결 방법은.. 게시판 검색을 해도 같은 내용의글은 없네요.