Remote host said: 450 4.7.1 Client host rejected: cannot find your hostname

111.111.111.111 does not like recipient.

Remote host said: 450 4.7.1 Client host rejected: cannot find your hostname, [xxx.xxx.xxx.xxx]

Giving up on 111.111.111.111.

I'm not going to try again; this message has been in the queue too long.

xxx.xxx.xxx.xxx 보내는쪽 메일서버주소

111.111.111.111 받는쪽 서버

메일이 반송되어 옵니다.

어떻게 확인해야하나요?

-해결-

# dig 자신의도메인

# dig -x xxx.xxx.xxx.xxx

# host xxx.xxx.xxx.xxx

*해당 메일서버의 도메인을 해당IP로 리버스도메인 등록해줌.

*해당 메일서버의 hostname을 검색하여 해당IP로 리버스도메인 등록해줌.