※ 필수입력정보 ※

▷ 제품버젼 : Nmail PHP2.6.9 UTF-8

▷ 오류발생 메뉴/주소 : ****@**** 에서 ****@****으로 보내는 메일

▷ 에러메세지 :

[<00>] XMail bounce: Rcpt=[****@****];Error=[550-5.7.1 This message does not have authentication information or fails to pass
550-5.7.1 authentication checks. To best protect our users from spam, the
550-5.7.1 message has been blocked. Please visit
550-5.7.1 https://support.google.com/mail/answer/81126#authentication for more
550 5.7.1 information. v10-v6si840888plo.820 - gsmtp]


[<01>] Error sending message [***-****-*******-****-****56.2.eml] from [visiontek.co.kr].

ID: <S155BBB>
Mail From: <****@****>
Rcpt To: <****@****>
Server: <tl-in-f26.1e100.net> [64.233.189.26]


[<02>] The reason of the delivery failure was:

550-5.7.1 This message does not have authentication information or fails to pass
550-5.7.1 authentication checks. To best protect our users from spam, the
550-5.7.1 message has been blocked. Please visit
550-5.7.1 https://support.google.com/mail/answer/81126#authentication for more
550 5.7.1 information. v10-v6si840888plo.820 - gsmtp


[<04>] Here is listed the message log file:

[PeekTime] ***-****-**** : Fri, 9 Feb 2018 10:47:19 +0900
<<
ErrCode = -162
ErrString = End of socket stream data
SMAIL SMTP-Send MX = "gmail-smtp-in.l.google.com." SMTP = "visiontek.co.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "550-5.7.1 This message does not have authentication information or fails to pass
550-5.7.1 authentication checks. To best protect our users from spam, the
550-5.7.1 message has been blocked. Please visit
550-5.7.1 https://support.google.com/mail/answer/81126#authentication for more
550 5.7.1 information. v10-v6si840888plo.820 - gsmtp"
SMTP-Server = "gmail-smtp-in.l.google.com."
>>


[<05>] Here is listed the initial part of the message:

Received: from localhost ([127.0.0.1]:44811)
by visiontek.co.kr with [XMail 1.22 PassKorea120228 ESMTP Server]
id <S155BBB> for <****@****> from <****@****>;
Fri, 9 Feb 2018 10:47:19 +0900
MIME-Version: 1.0
To: ****@****
From: "=?utf-8?B?7J207JiB6rec?=" <****@****>
Subject: =?utf-8?B?66mU7J28IOuwnOyGoSDthYzsiqTtirg=?=
Date: Fri, 09 Feb 2018 10:47:19 +0900
Message-id: <****@****>
X-Mailer: Passkorea.NET Nmail PHP, Build 20130311
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: base64

▷ 질문내용 :

Gmail로 발송하는 메일에 문제가 있어 IDC업체 측에 

요청하신 203.238.185.26 아이피에 대한 PTR (visiontek.co.kr) 레코드 등록 완료 하였습니다.

PTR 레코드 설정을 하였습니다.

이후에도 @gmail.com으로 발송하는 메일이 계속해서 리턴되고 있는데 해결 방법이 있을까요?

도움 부탁드립니다.