최근 일주일 사이 메일 발송시 자주 리턴되며 아래 메세지를 받습니다.
회사 업무용 메일인데 자꾸 이래서 불편합니다.
저 사이트 들어가봐도 등록되어있지 않아서요


The original message was received at Wed, 23 Sep 2020 16:56:05 +0900 from [175.197.161.15]

   ----- The following addresses had permanent fatal errors ----- <ㅇㅇㅇㅇ at ktcs.co.kr>
    (reason: 553 Access Denied. Please Visit http://www.spamhaus.org for details)

   ----- Transcript of session follows ----- ... while talking to antispam.ktcs.co.kr.:
>>> DATA
<<< 553 Access Denied. Please Visit http://www.spamhaus.org for details
554 5.0.0 Service unavailable




The original message was received at Tue, 22 Sep 2020 14:27:23 +0900 from [175.197.161.15]

   ----- The following addresses had permanent fatal errors ----- <ㅇㅇㅇㅇㅇ.com>
    (reason: 553 [Sniper]Blocked - see http://www.abuseat.org/lookup.cgi?ip=210.118.193.186)

   ----- Transcript of session follows ----- ... while talking to ezsmtp.bizmeka.com.:
>>> RCPT To:<ㅇㅇㅇㅇ.com>
<<< 553 [Sniper]Blocked - see http://www.abuseat.org/lookup.cgi?ip=210.118.193.186
550 5.1.1 <ㅇㅇㅇㅇ.com>... User unknown
451 4.4.1 reply: read error from ezsmtp.bizmeka.com.