▷ 질문내용 :

상단 에러메시지 제목으로 메일을 수신받았습니다. 

하단은 해당 메일 내용이며, SMTP 서버에서 할당량 초과로 인해 거부한다는 뜻으로 보여지는데, 

원인이 무엇인지 확인부탁드립니다. 

감사합니다.

ID: <S21B99C>

Mail From: <****@****>

Rcpt To: <****@****>

Server: <okprobe.com> [okprobe.com]

[<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, 2 Oct 2019 12:20:12 +0900

<<

ErrCode = -82

ErrString = [RCPT TO:] not permitted by remote SMTP server

ErrInfo = 450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded.

SMAIL SMTP-Send FF = "okprobe.com" SMTP = "e-nuriedu.or.kr" From = "****@****" To = "****@****" Failed !

SMTP-Error = "450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded."

SMTP-Server = "okprobe.com"

>>

[PeekTime] ***-****-**** : Wed, 2 Oct 2019 12:22:23 +0900

<<

ErrCode = -82

ErrString = [RCPT TO:] not permitted by remote SMTP server

ErrInfo = 450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded.

SMAIL SMTP-Send FF = "okprobe.com" SMTP = "e-nuriedu.or.kr" From = "****@****" To = "****@****" Failed !

SMTP-Error = "450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded."

SMTP-Server = "okprobe.com"

>>

[PeekTime] ***-****-**** : Wed, 2 Oct 2019 12:24:31 +0900

<<

ErrCode = -82

ErrString = [RCPT TO:] not permitted by remote SMTP server

ErrInfo = 450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded.

SMAIL SMTP-Send FF = "okprobe.com" SMTP = "e-nuriedu.or.kr" From = "****@****" To = "****@****" Failed !

SMTP-Error = "450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded."

SMTP-Server = "okprobe.com"

>>

[PeekTime] ***-****-**** : Wed, 2 Oct 2019 12:26:55 +0900

<<

ErrCode = -82

ErrString = [RCPT TO:] not permitted by remote SMTP server

ErrInfo = 450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded.

SMAIL SMTP-Send FF = "okprobe.com" SMTP = "e-nuriedu.or.kr" From = "****@****" To = "****@****" Failed !

SMTP-Error = "450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded."

SMTP-Server = "okprobe.com"

>>

[PeekTime] ***-****-**** : Wed, 2 Oct 2019 12:29:19 +0900

<<

ErrCode = -82

ErrString = [RCPT TO:] not permitted by remote SMTP server

ErrInfo = 450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded.

SMAIL SMTP-Send FF = "okprobe.com" SMTP = "e-nuriedu.or.kr" From = "****@****" To = "****@****" Failed !

SMTP-Error = "450 4.7.1 <****@****>: Recipient address rejected: Policy Rejection- Quota Exceeded."

SMTP-Server = "okprobe.com"

>>

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

X-AuthUser: ****@****

Received: from RNP***-****-****F ([221.151.83.200]:65469)

by e-nuriedu.or.kr with [XMail 1.22 PassKorea120228 ESMTP Server]

id <S21B99C> for <****@****> from <****@****>;

Wed, 2 Oct 2019 12:20:12 +0900

From: ****@****

Subject: =?ISO-2022-KR?B?GyQpQw5AZUQhDyAOMGYwbQ8gDj5LODIPIDogQzM1OVAyMDA0MjcgOiA=?=

=?ISO-2022-KR?B?GyQpQw4/a0F2R1QPIDEOPyEPIA4/a0F2DyAOM1YxYg8=?=

To: "C359P200427" <****@****>

Date: Wed, 2 Oct 2019 12:16:59 +0800

Message-Id: <****@****>

MIME-Version: 1.0

Content-Type: text/plain; charset=ISO-2022-KR

Content-Transfer-Encoding: 7bit