【重要公告】本校電子郵件伺服器「Open Relay」功能關閉通知

更新時間：2026-01-28 10:57:16 / 張貼時間：2026-01-28 09:27:05

張雅婷

單位計資中心

177

親愛的教職員工生，您好：

為提升校園網路資訊安全，並符合教育部資安稽核規範，本校電子郵件伺服器將進行安全設定調整，未來將關閉「Open Relay（開放寄/轉信）」功能。此舉旨在防止本校電子郵件伺服器被惡意利用發送垃圾郵件，誤當成黑名單遭到封鎖，影響全校師生正常信件往來。影響範圍包含教職員(@dragon.nchu.edu.tw,@nchu.edu.tw)及學生(@mail.nchu.edu.tw)郵件伺服器。

實施日期：115 年 9 月 30 日

影響與應配合事項：

Webmail 使用者：不受影響，無需任何動作。
手機/電腦郵件軟體使用者 (例如：Outlook, 手機 App)：請檢查您的軟體設定，確認「寄件伺服器 (SMTP)」已設定「帳號與密碼驗證」，若未設定，未來將無法寄信。
主機/系統/網站管理員：若您管理的系統寄件伺服器(SMTP)設定為本校電子郵件伺服器主機，伺服器名稱為：dragon.nchu.edu.tw 或 mail.nchu.edu.tw來寄送信件，請確認程式是否加入帳號密碼驗證。如有特殊需求無法設定驗證，請洽計資中心網路組申請白名單(請填寫特殊作業申請表，送至計資中心網路組)。

詳細圖文說明與設定教學，請參閱相關網頁：https://webmail.nchu.edu.tw/or/openrelay.html

若有任何疑問，歡迎來信洽詢。

計資中心資訊網路組敬上

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【Important】 Discontinuation of Email Server "Open Relay" Function

Dear Faculty, Staff, and Students,
To enhance campus network security and comply with the Ministry of Education's security audit requirements, the email server will discontinue the "Open Relay" function. This measure is necessary to prevent our servers from being exploited for spam, which could lead to the email server IP address being blacklisted and disrupting normal email communications.
The scope of influence includes Faculty and Staff(@dragon.nchu.edu.tw, @nchu.edu.tw) and Students(@mail.nchu.edu.tw) email server.

Effective Date: September 30, 2026
Impact and Required Actions:

Webmail Users: No action required. You are not affected.
Email Software/App Users (e.g., Outlook, Mobile Apps): Please check your settings. Ensure that your Outgoing Server (SMTP) is configured with [Username and Password authentication]. Failure to do so will result in an inability to send emails after the deadline.
Server/System/Website Administrators: If the system you manage uses our email server SMTP service to send emails via the server name dragon.nchu.edu.tw or mail.nchu.edu.tw, please confirm that account and password verification has been added to the program. If you have special requirements that prevent you from setting up verification, please contact the Network Group of the Computing and Information Center to apply for a whitelist.

For detailed instructions and setup guides, please visit: https://webmail.nchu.edu.tw/or/openrelay_en.html

If you have any questions, please feel free to contact us.
Sincerely,
Network Division, Computer Center

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