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ZyWALL (ZLD) CLI Reference Guide 215

CHAPTER 24

Anti-Spam

This chapter introduces and shows you how to configure the anti-spam scanner.

24.1 Anti-Spam Overview

The anti-spam feature marks or discards spam. Activate the anti-spam subscription service for

sender IP reputation checking, mail content analysis, and virus outbreak detection. Use the white

list to identify legitimate e-mail. Use the black list to identify spam e-mail. You can also check e-

mail against a DNS black list (DNSBL) of IP addresses of servers suspected of being used by

spammers.

24.2 Anti-Spam Commands

The following table identifies the values used in some of these commands. Other input values are

discussed with the corresponding commands.

24.2.1 General Anti-Spam Commands

The following table describes general anti-spam commands. You must use the configure

terminal

command to enter the configuration mode before you can use these commands.

Table 116 Input Values for General Anti-Spam Commands

LABEL DESCRIPTION

rule_number The index number of an anti-spam rule. 1 - X where X is the highest number of anti-spam

rules the ZyWALL model supports. See the ZyWALL’s User’s Guide for details.

zone_object The name of the zone. The ZyWALL USG 200 and lower models use pre-defined zone names

like DMZ, LAN1, SSL VPN, WLAN, IPSec VPN, OPT, and WAN.

xheader-name The name (part that comes before the colon) of a field to add to an e-mail header. Use up to

16 ASCII characters.

xheader-value The value (part that comes after the colon) of a field to add to an e-mail header. Use up to

16 ASCII characters.

Table 117 General Anti-Spam Commands

COMMAND DESCRIPTION

[no] anti-spam activate Enables or disables anti-spam service.

show anti-spam activation Displays anti-spam service status.

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