ZyWALL (ZLD) CLI Reference Guide 211
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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