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▷ 제품버젼 : NMail.NET v4.5

▷ 오류발생 메뉴/주소 : 편지쓰기후 받은편지함 리턴메일 내용

▷ 에러메세지 : [Return Mail] 550 SPF check failed: 211.170.106.71 is not authorized to send in the name of "goodpartners.co.kr".X-MailerServer: NMail5 Ver 5.0

[Send Fail Message]
550 SPF check failed: 211.170.106.71 is not authorized to send in the name of "goodpartners.co.kr".


================ Original Message Header ================
>> ReTryCount:3
>> ReTryDate:***-****-****651
>> ReTryCount:2
>> ReTryDate:***-****-****650
>> ReTryCount:1
>> ReTryDate:***-****-****450
>> ReTryCount:0
>> ReTryDate:***-****-****950
>> MAIL_FROM:<****@****>
>> RCPT_TO:<****@****>
>> CONNECTIP:<127.0.0.1>
>> IPCHECK:<TRUE>
>> Mail_Kind:2
>> x-nmail-delimiter: NMAIL_DELIMITER
>> received-SPF: NONE
>> Received: from goodpartners.co.kr (127.0.0.1)
>> by passkorea.net (127.0.0.1) with [NMail5 Ver 5.0]
>> for <nmail@passkorea.net> from <****@****>;
>> Mon, 03 Aug 2020 09:59:50 +0900
>> X-Nmail5-RBL: NONE
>> X-Assp-ID: ASSP.nospam m1-***-****-****6
>> X-Assp-Session: 1D0159A0 (mail 1)
>> X-Assp-Envelope-From: ****@****
>> X-Assp-Intended-For: nmail@passkorea.net
>> X-Assp-Version: 2.6.3(19169) on ASSP.nospam
>> X-Assp-Delay: not delayed (whitelisted); 3 Aug 2020 09:59:48
>> +0900
>> X-Assp-Whitelisted: Yes (whiteListedDomains '@passkorea.net')
>> Received: from mail.chinactr.com ([14.55.64.11] helo=goodpartners.co.kr) by
>> ASSP.nospam with SMTP (2.6.3); 3 Aug 2020 09:59:48 +0900
>> Message-ID: <****@****>
>> From: "=?utf-8?B?6rmA7ZmN7KSA?=" <****@****>
>> To: <nmail@passkorea.net>
>> Subject: =?utf-8?B?6rW/7YyM7Yq464SI7IqkIOq5gO2ZjeykgOyeheuLiOuLpC4g7J2066mU7J28IOuzteq1rCDsnpHs?=
>> =?utf-8?B?l4Xsi5wg64KY7Jik64qUIO2ZlOuptOyeheuLiOuLpC4=?=
>> Date: Mon, 03 Aug 2020 09:59:47 +0900
>> MIME-Version: 1.0
>> Content-Type: multipart/mixed;
>> boundary="----=_Nmail_NET_NextPart_ecbe1ca0_3233_4a84_8c0e_ca57988f0e9a_=----"
>> X-Mailer: Nmail.NET by passkorea.net

================ Message Truncated ================

▷ 질문내용 : 이메일 복구 관련 자료 파일을 첨부하여 메일을 보냈는데 이런 리턴메일이 옵니다.

DNS 서버에 TXT(텍스트) 레코드로  데이터에 "v=spf1 ip4:14.55.64.11 ip4:14.55.64.51 ~all" 추가되어 있습니다. 메일서버가 .14.55.64.11, DNS서버가 14.55.64.51 입니다.