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▷ 제품버젼 : nmailPHP

▷ 오류발생 메뉴/주소 : 메일 발송시 오류메세지가 옵니다.

 다른글을 검색해본 결과 상대 서버의 일시적인 에러라고 했지만, 5개월 정도 이런 문제가 지속 됬다고 해요

 다른 업체는 문제가 없는데 현재 이업체만 문제가 계속 발생하네요

 메일 주소가 co 로 끝나기 때문에 발생하는 문제는 아닌가요?

 확인 부탁드립니다. 

 문제 메일 주소 : ****@****

▷ 에러메세지 :

[<00>] XMail bounce: Rcpt=[****@****];Error=[The maximum number of delivery attempts has been reached]


[<01>] Error sending message [***-****-****63.7fac51bc5700.396d.7c716.eml] from [imetis.co.kr].

ID: <S2EF988>
Mail From: <****@****>
Rcpt To: <****@****>
Server: <121.158.241.176.> [121.158.241.176.]


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

The maximum number of delivery attempts has been reached


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

[PeekTime] ***-****-**** : Mon, 23 Sep 2019 12:23:37 +0900
<<
ErrCode = -40
ErrString = Invalid server address
ErrInfo = 121.158.241.176.
SMAIL SMTP-Send MX = "121.158.241.176." SMTP = "imetis.co.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "121.158.241.176."
>>
[PeekTime] ***-****-**** : Mon, 23 Sep 2019 12:25:38 +0900
<<
ErrCode = -40
ErrString = Invalid server address
ErrInfo = 121.158.241.176.
SMAIL SMTP-Send MX = "121.158.241.176." SMTP = "imetis.co.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "121.158.241.176."
>>
[PeekTime] ***-****-**** : Mon, 23 Sep 2019 12:27:46 +0900
<<
ErrCode = -40
ErrString = Invalid server address
ErrInfo = 121.158.241.176.
SMAIL SMTP-Send MX = "121.158.241.176." SMTP = "imetis.co.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "121.158.241.176."
>>
[PeekTime] ***-****-**** : Mon, 23 Sep 2019 12:30:10 +0900
<<
ErrCode = -40
ErrString = Invalid server address
ErrInfo = 121.158.241.176.
SMAIL SMTP-Send MX = "121.158.241.176." SMTP = "imetis.co.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "121.158.241.176."
>>
[PeekTime] ***-****-**** : Mon, 23 Sep 2019 12:32:34 +0900
<<
ErrCode = -40
ErrString = Invalid server address
ErrInfo = 121.158.241.176.
SMAIL SMTP-Send MX = "121.158.241.176." SMTP = "imetis.co.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "121.158.241.176."
>>


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

Received: from localhost ([127.0.0.1]:54160)
by imetis.co.kr with [XMail 1.27 PassKorea160330 ESMTP Server]
id <S2EF988> for <****@****> from <****@****>;
Mon, 23 Sep 2019 12:23:37 +0900
MIME-Version: 1.0
To: ****@****
From: "=?utf-8?B?7J206rK966+4?=" <****@****>
Subject: =?utf-8?B?UkU6IOuplO2LsOyKpCA0TTFFIOuzgOqyveygkCDsi6Dqs6Ag7IKs7J207Yq4IOyalOyyreydmCDku7Yg?=
Date: Mon, 23 Sep 2019 12:23:37 +0900
Message-id: <****@****>
X-Mailer: Passkorea.NET Nmail PHP, Build 20130311
Content-Type: multipart/related;
boundary="=_5702aaa54d6ddd595c5d9d8505d601fa"

▷ 질문내용 :