被退信問題

[samtech]

版主你好,我是使用 雷電 mail server 2.5.4 版，最近一直被退信。
退信內容如下:
====================================
This is a return mail sent by system automatically, please do not reply this mail.
Your mail can not be delivered successfully due to the reason below:

Response Message :
To: fanny.tsao@shl-group.com
Subject: Test mail
Remote host: 59.124.192.106
Detail: Ironport01.shl-group.com Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.


___ Information from ESET Smart Security, version of virus signature database 13716 (20160627) ____

The message was checked by ESET Smart Security.

http://www.eset.com
=======================================
請問，這是什麼問題? 要如何解決?
謝謝！
Sam

[Arnor]

Ironport01.shl-group.com Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please contact the intended recipient via alternate means.


它拒絕你的IP 因為你的 IP 名聲不好.
如果你認為這是錯的, 請利用別的信箱跟收件人聯繫看看(加白名單?).

建議您 http://www.spamhaus.org 到 blocklist removal center 查查你的對外 IP.
_________________
*若是想問問題的話, 請務必不要塗改任何 IP, 網域資料, 您若不願貼上IP或網域, 請改以電子郵件來詢問. 謝謝您的配合.*
*若是回報疑似軟體的運行或邏輯或資料處理有誤的問題, 小弟很樂意去了解您的情況, 但請務必以最新版來做回報, 如果以郵件詢問, 請參考 http://www.raidenmaild.com/tw/feedback.html 的說明, 最好標題加個 RaidenMAILD 字樣, 才不致會遺漏了您的信唷. 謝謝您的配合^^*
*在版上發文請遵守網路禮儀, 並請持著虛心敘述問題請教他人, 凡發現違反的文, 均一律刪除為優先, 不另行通知喔.
*與使用者教學相長腦力激盪是我輩成就感的來源, 誠心希望您能不吝指教.
*雷電MAILD 知識庫文件 http://www.raidenmaild.com/tw/kb/

素還尊
Team John Long.
Email: arnor@raidenmaild.com
公司網站 http://www.raidenmaild.com/company/