ZyXEL Communications 3.1 ユーザーズマニュアル

Chapter 24 Anti-Spam

ZyWALL (ZLD) CLI Reference Guide

This example shows how to configure (and display) a WAN to DMZ anti-spam rule to scan POP3 and 
SMTP traffic. SMTP spam is forwarded. POP3 spam is marked with a spam tag. The ZyWALL logs the 
event when an e-mail matches the DNSBL (see 

 for more on DNSBL). 

The white and black lists are ignored. 

The following table identifies values used in these commands. Other input values are discussed with 
the corresponding commands.

Router(config)# anti-spam rule 1

Router(config-as-rule-1)# activate

Router(config-as-rule-1)# from-zone WAN

Router(config-as-rule-1)# to-zone DMZ

Router(config-as-rule-1)# scan smtp

Router(config-as-rule-1)# scan pop3

Router(config-as-rule-1)# match-action smtp forward

Router(config-as-rule-1)# match-action pop3 forward-with-tag

Router(config-as-rule-1)# log

Router(config-as-rule-1)# bypass white-list

Router(config-as-rule-1)# bypass black-list

Router(config-as-rule-1)# exit

Router(config)# show anti-spam rule 1

Anti-Spam Rule: 1

  active: yes

  log: log 

  from zone: WAN

  to zone: DMZ

  scan protocols:

    smtp: yes

    pop3: yes

  match action:

    smtp: forward

    pop3: forward-with-tag

  bypass white list: yes

  bypass black list: yes

  bypass ip reputation: no

  bypass mail content: no

  bypass virus outbreak: no

  bypass dnsbl: no

Input Values for White and Black list Anti-Spam Commands

The name part of an e-mail header (the part that comes before the colon). Use up 
to 63 ASCII characters.  

For example, if you want the entry to check the “Received:” header for a specific 
mail server’s domain, use “Received”.

The value part of an e-mail header (the part that comes after the colon). Use up to 
63 ASCII characters.

For example, if you want the entry to check the “Received:” header for a specific 
mail server’s domain, specify the mail server’s domain.

See 

 for more details.