Content Security Gateway User’s Manual

efficiency of the employees and will not lose the important information of enterprise.

In this chapter, we will have the detailed illustration about Anti-Spam:

4.5.2.1 Setting

The Administrator can choose the inspection way of the mails, where the mail server is placed in Internal (LAN or DMZ) or External (WAN). CS-500 also can inspect all of the mails that are sent to the enterprise, and add a score tag or message to the subject line of Spam mail while it exceeds the standard. Meanwhile, it supports to check sender address in blacklist of anti-spam website to determine if it is spam mail or not.

Definition:

Enable Anti-Spam: Select to enable Anti-Spam function.

The Mail Server is placed in Internal (LAN or DMZ) or External (WAN): Select to choose the location of the

mail server.

The threshold score of spam mail is: CS-500 allows the Administrator to decide the threshold to be the standard of judging the spam mail.

Add the message to the subject line: If the mail has been judged to the spam mail, CS-500 will add a message in the mail’s subject. You can configure the message you want, by default, it will be add “SPAM” in the subject.

Check spam fingerprint: Select to allow CS-500 checking spam mail with Fingerprint system.

Enable Bayesian filtering: Except to select fingerprinter system to distinguish spam mail, you also can select Bayesian filtering system to scan spam mail.

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