정품사용자 입니다.

오늘 오후부터 아래와 같이 리턴 메일 오는데 분석 부탁드려요...

-------------------------------------

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


[<01>] Error sending message [***-****-*******-****-****36.136c2.eml] from [bizenter.kr].

ID: <S862A0>
Mail From: <****@****>
Rcpt To: <****@****>
Server: <mx1.hanmail.net.> [mx1.hanmail.net.]


[<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] ***-****-**** : Wed, 13 Nov 2013 15:30:14 +0900
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)
SMAIL SMTP-Send MX = "mx1.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)"
SMTP-Server = "mx1.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)
SMAIL SMTP-Send MX = "mx2.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)"
SMTP-Server = "mx2.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)
SMAIL SMTP-Send MX = "mx3.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)"
SMTP-Server = "mx3.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)
SMAIL SMTP-Send MX = "mx4.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "421 4.4.5 CCRC 1.234.2.250: Connection refused. Server is busy(RC)"
SMTP-Server = "mx4.hanmail.net."
>>
[PeekTime] ***-****-**** : Wed, 13 Nov 2013 15:32:17 +0900
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx1.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx1.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx2.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx2.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx3.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx3.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx4.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx4.hanmail.net."
>>
[PeekTime] ***-****-**** : Wed, 13 Nov 2013 15:34:25 +0900
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx1.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx1.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx2.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx2.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx3.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx3.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx4.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx4.hanmail.net."
>>
[PeekTime] ***-****-**** : Wed, 13 Nov 2013 15:36:49 +0900
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx1.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx1.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx2.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx2.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx3.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx3.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx4.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx4.hanmail.net."
>>
[PeekTime] ***-****-**** : Wed, 13 Nov 2013 15:39:13 +0900
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx1.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx1.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx2.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx2.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx3.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx3.hanmail.net."
>>
<<
ErrCode = -41
ErrString = Bad server response
ErrInfo = 451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)
SMAIL SMTP-Send MX = "mx4.hanmail.net." SMTP = "bizenter.kr" From = "****@****" To = "****@****" Failed !
SMTP-Error = "451 4.4.1 DXNS1 1.234.2.250: Network is busy(XDNS)"
SMTP-Server = "mx4.hanmail.net."
>>


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

Received: from localhost ([127.0.0.1]:37818)
by bizenter.kr with [XMail 1.22 PassKorea120228 ESMTP Server]
id <S862A0> for <****@****> from <****@****>;
Wed, 13 Nov 2013 15:30:14 +0900
MIME-Version: 1.0
To: ****@****
From: "=?utf-8?B?7J2064yA7IiY?=" <****@****>
Subject: test
Date: Wed, 13 Nov 2013 15:30:13 +0900
Message-id: <****@****>
X-Mailer: Passkorea.NET Nmail PHP, Build 20120914
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: base64