-----Original Message-----
From: "ngelnet.com PostMaster" <****@****>
Sent: 2020-07-22 19:17:36
To: ****@****
Subject: Error sending message [***-****-*******-****-*******-****-****2.eml] from [ngelnet.com]

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


[<01>] Error sending message [***-****-*******-****-*******-****-****2.eml] from [ngelnet.com].

ID: <S23F18B>
Mail From: <****@****>
Rcpt To: <'****@****'>
Server: <syswin.co.kr'> [syswin.co.kr']


[<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, 22 Jul 2020 19:08:27 +0900
<< 
ErrCode = -40
ErrString = Invalid server address
ErrInfo = syswin.co.kr'
SMAIL SMTP-Send FF = "syswin.co.kr'" SMTP = "ngelnet.com" From = "****@****" To = "'****@****'" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "syswin.co.kr'"
>> 
[PeekTime] ***-****-**** : Wed, 22 Jul 2020 19:10:40 +0900
<< 
ErrCode = -40
ErrString = Invalid server address
ErrInfo = syswin.co.kr'
SMAIL SMTP-Send FF = "syswin.co.kr'" SMTP = "ngelnet.com" From = "****@****" To = "'****@****'" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "syswin.co.kr'"
>> 
[PeekTime] ***-****-**** : Wed, 22 Jul 2020 19:12:48 +0900
<< 
ErrCode = -40
ErrString = Invalid server address
ErrInfo = syswin.co.kr'
SMAIL SMTP-Send FF = "syswin.co.kr'" SMTP = "ngelnet.com" From = "****@****" To = "'****@****'" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "syswin.co.kr'"
>> 
[PeekTime] ***-****-**** : Wed, 22 Jul 2020 19:15:12 +0900
<< 
ErrCode = -40
ErrString = Invalid server address
ErrInfo = syswin.co.kr'
SMAIL SMTP-Send FF = "syswin.co.kr'" SMTP = "ngelnet.com" From = "****@****" To = "'****@****'" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "syswin.co.kr'"
>> 
[PeekTime] ***-****-**** : Wed, 22 Jul 2020 19:17:36 +0900
<< 
ErrCode = -40
ErrString = Invalid server address
ErrInfo = syswin.co.kr'
SMAIL SMTP-Send FF = "syswin.co.kr'" SMTP = "ngelnet.com" From = "****@****" To = "'****@****'" Failed !
SMTP-Error = "417 Temporary delivery error"
SMTP-Server = "syswin.co.kr'"
>> 


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

X-AuthUser: ****@****
Received: from DESKTOP7RPM6UR ([1.212.231.190]:51635)
by ngelnet.com with [XMail 1.22 PassKorea120228 ESMTP Server]
id <S23F18B> for <'****@****'> from <****@****>;
Wed, 22 Jul 2020 19:08:27 +0900
From: =?ks_c_5601-1987?B?sce/68iv?= <****@****>
To: <'****@****'>
References: 
In-Reply-To: 
Subject: =?ks_c_5601-1987?B?Rlc6IMjeuc7F2CAtIE1vdGhlciBMaW5lICggQy1JQywgQy1QTkwg?=
=?ks_c_5601-1987?B?us7C+LHiICkgQ0lNILDfwPvAx7fawMcgsMcg?=
Date: Wed, 22 Jul 2020 19:08:29 +0900
Message-ID: <001201d66010$0c47e5b0$24d7b110$@ihumin.co.kr>
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="----=_NextPart_000_0013_01D6605B.7C2FB4C0"
X-Mailer: Microsoft Outlook 16.0
Thread-Index: AdZbSYcZJ/L/Lz95SZeDIL05VLoETgExhRFw
Content-Language: ko