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Educational Network Center of Tainan City Anti-SPAM Report Kuo-Kuang Chu.

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Presentation on theme: "Educational Network Center of Tainan City Anti-SPAM Report Kuo-Kuang Chu."— Presentation transcript:

1 Educational Network Center of Tainan City Anti-SPAM Report Kuo-Kuang Chu

2 Configuration in TN Mail spool account DNS Client or Other SMTP servers MX record for SMTP? A record for SMTP ? SMTP, IMAP, POP3, webmail Mail Exchanger Remote Filter messages mail.tn.edu..tw ms1.tn.edu..tw ms2.tn.edu..tw Mail.tn.edu.tw: P4 3.2G, 1GB ram, GB DSK CPU idle 90%-99%, used swap 4096k Ms(1|2).tn.edu.tw: P4-2.8G*2, 1GB ram, 36G DSK CPU idle 85%-99%, used swap 0k MX record for filter ?

3 TN Mail Anti-SPAM Process All Messages 27% Graylist 73% ClamAV Spam- Assassin 25% 17% 2% 3% Not-delivered Spam-level>16 Virus Rejected 5% Spam alert Spam-level:6-15 Passed

4 Day Report in TN Mail The load is evenly distributed between ms1 and ms2 Date Range: 2004/11/01 00:00: /12/01 00:00:00

5 TN Mail Filter Statistics Date Range: 2004/11/01 00:00: /12/01 00:00:00

6 Passed & Not-delivered Messages Add SPAM alert In Subject

7 Passed Messages Top 5 Client Hosts Top 5 Client Domains Top 5 Senders Top 5 Sender Hosts Top 5 Sender Domains

8 Not-delivered Messages Top 5 client hosts of spam Top 5 client domains of spam Top 5 senders of spam Top 5 sender hosts of spam Top 5 sender domains of spam

9 Infected Messages Top 5 Virus Top 5 Client Hosts Top 5 Client Domains Top 5 Senders Top 5 Sender Hosts Top 5 Sender Domains

10 Rejected Messages Top 5 Reject reasons Top 5 Client Hosts Top 5 Client Domains Top 5 Senders Top 5 Sender Hosts Top 5 Sender Domains

11 Rejected Connections Top 5 Reject Reasons Top 5 Client Hosts Top 5 Client Domains Top 5 Senders Top 5 Sender Hosts Top 5 Sender Domains

12 Mail Filter Log Advanced Search

13 Add SPAM Level in Subject

14 SpamAssassin local.cf Sample bodyMailName_ZH/ 姓名 / describ Name_ZHBody contain spammer msg in chinese scor Name_ZH1 bodyMail_ADDR/ 住址 / describ _ADDRBody contain spammer msg in chinese scor _ADDR1 bodyMail_MOBILE/ 手機 | 行動 / describ _MOBILEBody contain spammer msg in chinese scor _MOBILE1 bodyMail_ / | | 電子郵件 | 電郵 | 電子信箱 / describ _ Body contain spammer msg in chinese scor _ 0 bodyMail_TEL/ 電話 / describ _TELBody contain spammer msg in chinese scor _TEL0 bodyMail_SEND/ 郵寄 / describ _SENDBody contain spammer msg in chinese scor _SEND0 metaMail_ZHMailName_ZH && Mail_ADDR && (Mail_MOBILE || Mail_TEL ||Mail_ || Mail_SEND) describ _ZHBody contain spammer msg in chinese scor _ZH3

15 Meta Score in local.cf

16 Reconfigure local.cf Parse local.cf –spamassassin --lint local.cf Restart amavisd –/usr/local/sbin/amavisd stop –/usr/local/sbin/amavisd start

17 TN Mail Management System

18 School Personnel Approved


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