※ 필수입력정보 ※

▷ 제품버젼 : Nmail standard version 3.7
▷ 오류발생 메뉴/주소 :
▷ 에러메세지 :
-----------------------------------------------------------------------------------------------------
Error Message : 554 mail01.mtv-asia.com [****@****]
-----------------------------------------------------------------------------------------------------
Error Message : 550 Your e-mail was rejected for policy reasons on this gateway. Reasons for rejection may be related to content such as obscene language, graphics, or spam-like characteristics (or) other reputation problems. For sender troubleshooting information, please go to http://postmaster.msn.com. Please note: if you are an end-user please contact your E-mail/Internet Service Provider for assistance.
-----------------------------------------------------------------------------------------------------
Error Message : 550 Service unavailable; Client host [211.235.255.108] blocked using 87.blacklist.zap; Mail From IP Banned To request removal from this list please forward this message to ****@**** [****@****]
-----------------------------------------------------------------------------------------------------
Error Message : 554 Transaction Failed Spam Message not queued. [****@****]
-----------------------------------------------------------------------------------------------------

▷ 질문내용 :
위와 같이 보내는 메일주소에 따라 여러형태의 에러가 떨어지면서 리턴되네요..
메일이 잘 되다가 갑자기 이런 현상들이 여기저기서 발생하면서 리턴되고 있는데
원인과 대처방법 좀 알려주세요..
부탁드립니다.