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Chapter 24 Anti-Spam
ZyWALL (ZLD) CLI Reference Guide
214
24.2.2.1 Zone to Zone Anti-spam Rule Example
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 Section 24.2.4 on page 216 for more on DNSBL).
The white and black lists are ignored.
24.2.3 White and Black Lists
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
Table 119 Input Values for White and Black list Anti-Spam Commands
LABEL DESCRIPTION
mail_header 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”.
mail_header_value 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 Section 24.2.3.2 on page 216 for more details.