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Multi-Homing Security Gateway User’s Manual

Check sender account: Select to allow CS-1000 checking sender’s account when it receives the mail, if the

sender’s account is faked, CS-1000 will treat the mail as the spam.

Check sender IP address in RBL (Realtime Blackhole List): Select this function to allow CS-1000 checking

mail with RBL list to Judge the spam mail.

Add score tag to the subject line: If select this function, all received mail will be added a score tag in the

mail subject.

Action of Spam Mail: When CS-1000 filters the spam mail, there are three kinds of actions for Internal Mail

Server and one action for External Mail server to arrange the spam mail:

Delete the spam mail: If select this option, the spam mail will be deleted without any notification.

Deliver to the recipient: Pass the mail to the recipient, and add a “SPAM” in the mail subject. This

function is available for Internal and External Mail Server.

Forward to: Select to forward spam mail to a specific mail account; that can be easily to manage the spam

mail.

Configure an Anti- Spam setting

After setup the relevant settings in Mail Relay function of Configure, add the following settings in this

function:

1. The Mail Server is placed in Internal (LAN or DMZ)

2. The threshold score: Enter 5

3. Add the message to the subject line: Enter ---spam---

4. Select the spam mail filtering system to enable the Anti-spam function

5. Select Add score tag to the subject line

6. Select Deliver to the recipient

7. Click OK.

3.5.2.2 Rule

The Multi-Homing Security Gateway’s Administrator may use the rule setting to classify the spam mail based

on a certain condition. The rule also can allow CS-1000 to record the mail type by auto-learning system in

order to judge the spam mail.

Click on Mail Security in the menu bar, then click on Rule below the Anti-Spam menu. The Rule window will

appear.

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