疑似異常登入，暫停 d844211@alumni.nthu.edu.tw 等 52 筆信箱帳號驗證寄信服務

張貼日期：2019/03/11

主旨：查信箱帳號 d844211@alumni.nthu.edu.tw 等 52 筆信箱帳號使用 SMTPAUTH 疑似異常登入(或寄信)，因此暫停該帳號使用驗證寄信服務，詳說明。

說明：

查信箱帳號 d844211@alumni.nthu.edu.tw 等 52 筆信箱帳號（清單詳後）於 2019/03/09-11 有使用 SMTPAUTH 異常登入(或寄信)現象，為防止事態擴大，已暫停該帳號使用驗證寄信服務。
此帳號係屬校友服務中心管理，已用電子郵件轉知該單位郵件系統管理人員後續處理；如該帳號欲復用驗證寄信服務，請由該單位管理人員回覆本中心處理。
由於網路詐騙盛行，提醒使用者切勿將信箱密碼寄給任何人，以免帳號被盜用。此外，勿再使用相同密碼，並請提高密碼強度可降低被駭客猜中的機率。
如欲進一步了解所寄出的異常信件，請參閱「如何找尋郵件記錄器中的信件？」，查詢發生當日的送件匣(外部發送或本地發送)即可。另，有少數情況僅有成功登入，但還未寄出異常信件（可能為入侵前期，日後才發信），此時郵件記錄器查無信件，故若需查閱其登入明細者，請洽 opr@net.nthu.edu.tw (來信請附本公告網址及您的 email address，以利提供資料)。如為誤判，敬請來信告知，謝謝!

計算機與通訊中心
網路系統組敬啟

疑似異常寄信或登入的電子郵件信箱帳號清單

2019-03-09 19:24:49     d844211@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:29:39     cyliang@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:30:04     d873372@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:30:24     d897605@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:30:53     d893615@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:33:15     g923529@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:33:48     d877405@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:35:54     g913796@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:39:12     g9523519@alumni.nthu.edu.tw     smtpauth        5.79.86.1X      Netherlands
2019-03-09 19:40:31     g913509@alumni.nthu.edu.tw      smtpauth        84.209.51.18X   Norway
2019-03-09 19:42:37     d893513@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:44:07     d897303@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:44:23     g903775@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:44:49     d887403@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:44:51     g934133@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:48:32     g913871@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:48:36     g903524@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:49:11     g913870@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 19:49:36     g906417@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 19:52:03     g893119@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 19:53:08     g893651@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:53:18     g9531593@alumni.nthu.edu.tw     smtpauth        23.129.64.10X   United States
2019-03-09 19:53:32     g944376@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:53:46     g904394@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:54:07     g883861@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:54:43     g926340@alumni.nthu.edu.tw      smtpauth        185.147.237.X   Sweden
2019-03-09 19:55:47     g943629@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 19:55:47     g903836@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:56:53     g903797@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:58:14     g853752@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:58:19     g934230@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 19:58:49     d873461@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 19:59:18     g946203@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 20:00:09     g913656@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:01:55     g913541@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:02:36     g863717@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:02:43     g893464@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:05:22     g915043@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:06:54     g913548@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:09:56     g905256@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:10:51     g934524@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 20:11:34     g833843@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:13:27     g915023@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-09 20:13:32     g894513@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 20:17:36     g925004@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-09 20:23:26     g936419@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 00:57:36     g833843@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:38     g915043@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:41     g946905@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:42     g853752@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:42     g913656@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:42     d873461@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:43     g903797@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:44     g904394@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:44     g903836@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:45     g944376@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:45     g885092@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:45     g9531593@alumni.nthu.edu.tw     smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:47     g893651@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:47     g913871@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:49     d887403@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:49     g934133@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:49     g903775@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:53     d873372@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:54     cyliang@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:57:54     d893615@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:58:46     g903955@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 00:58:47     g883861@alumni.nthu.edu.tw      smtpauth        94.233.233.X    Russian Federation
2019-03-11 02:58:28     g883861@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 03:03:30     d893615@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 03:28:40     g903524@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 03:32:29     g944376@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 03:54:45     d887403@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 04:02:10     g904394@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 04:31:15     g885092@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 05:01:31     g946213@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 05:24:38     g903775@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 05:47:30     g936419@alumni.nthu.edu.tw      smtpauth        5.79.86.1X      Netherlands
2019-03-11 05:59:46     g934524@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 06:33:43     g903639@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 07:16:38     g913541@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 07:35:28     g933801@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 07:51:54     g893651@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 07:54:46     g943629@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 07:59:19     d877405@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 09:22:46     g906417@alumni.nthu.edu.tw      smtpauth        23.129.64.10X   United States
2019-03-11 09:33:01     g903797@alumni.nthu.edu.tw      smtpauth        94.102.49.15X   Seychelles
2019-03-11 09:33:06     g903797@alumni.nthu.edu.tw      smtpauth        94.102.49.15X   Seychelles
2019-03-11 10:22:05     g923529@alumni.nthu.edu.tw      smtpauth        185.222.202.13X Ukraine