※ 필수입력정보 ※

▷ 제품버젼 : ASP Ent.

▷ 오류발생 메뉴/주소 :

▷ 에러메세지 :

The original message was received at Sat, 19 Jan 2013 21:02:36 +0900
from 50-57-224-166.static.cloud-ips.com [50.57.224.166]

----- The following addresses had permanent fatal errors -----
<****@****>
(reason: 554 fed1rmimpi312 cox 118.129.166.200 rejected - no rDNS - Refer to Error Codes section at http://postmaster.cox.net/confluence/display/postmaster/Error+Codes for more information.)
<****@****>
(reason: 550 5.2.1 The email account that you tried to reach is disabled. y1si8677480pav.306)
<****@****>
(reason: 550 IP 118.129.166.200 is blocked by EarthLink. Go to earthlink.net/block for details.)

----- Transcript of session follows -----
.... while talking to mailin-04.mx.aol.com.:
<<< 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html
.... while talking to mailin-03.mx.aol.com.:
<<< 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html
.... while talking to mailin-01.mx.aol.com.:
<<< 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html
.... while talking to mailin-02.mx.aol.com.:
<<< 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html
<****@****>... Deferred: 421 4.7.1 : (DNS:NR) http://postmaster.info.aol.com/errors/421dnsnr.html
.... while talking to mx.east.cox.net.:
<<< 554 eastrmimpi209 cox 118.129.166.200 rejected - no rDNS - Refer to Error Codes section at http://postmaster.cox.net/confluence/display/postmaster/Error+Codes for more information.
.... while talking to mx.west.cox.net.:
<<< 554 fed1rmimpi312 cox 118.129.166.200 rejected - no rDNS - Refer to Error Codes section at http://postmaster.cox.net/confluence/display/postmaster/Error+Codes for more information.
554 5.0.0 Service unavailable
.... while talking to gmail-smtp-in.l.google.com.:
>>> RCPT To:<****@****>
<<< 550 5.2.1 The email account that you tried to reach is disabled. y1si8677480pav.306
550 5.1.1 <****@****>... User unknown
.... while talking to mx02.peoplepc.com.:
>>> MAIL From:<****@****> SIZE=765
<<< 550 IP 118.129.166.200 is blocked by EarthLink. Go to earthlink.net/block for details.
554 5.0.0 Service unavailable
.... while talking to mta5.am0.yahoodns.net.:
<<< 421 4.7.0 [TS01] Messages from 118.129.166.200 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html
.... while talking to mta6.am0.yahoodns.net.:
<<< 421 4.7.0 [TS01] Messages from 118.129.166.200 temporarily deferred due to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html
.... while talking to mta7.am0.yahoodns.net.:
>>> EHLO www.itk21.co.kr
<<< 421 4.7.0 [TS01] Messages from 118.129.166.200 temporarily deferred - 4.16.55.1; see http://postmaster.yahoo.com/errors/421-ts01.html
<****@****>,<****@****>,<****@****>,<****@****>,<****@****>,<****@****>,<****@****>,<****@****>,<****@****>... Deferred: 421 4.7.0 [TS01] Messages from 118.129.166.200 temporarily deferred - 4.16.55.1; see http://postmaster.yahoo.com/errors/421-ts01.html

▷ 질문내용 :

2013.01.19~20일 갑지가 특정 계정으로 메일이 4,000 여개 갑자기 들어왔습니다.

보낸 IP 는 118.129.166.200 이었으며 (netstat 조회)

받는 메일은 ****@**** 입니다.

갑자기 메일이 들어와 해당 계정을 중지 시켰습니다.

상기 메일과 같은 Returned mail: see transcript for details  제목의 메일이 4천여개 들어온 상태입니다.

이런 상황이 발생되는 원인과 해결 방법을 알고 싶습니다.

이전에는 이런 상황이 없었는데 갑자기 이런 문제가 발생되었습니다.