ZyXEL Communications 100 Series User Manual
Chapter 33 Anti-Spam
ZyWALL USG 100/200 Series User’s Guide
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The following table describes the labels in this screen.
33.4 The Anti-Spam Black List Screen
Click Anti-X > Anti-Spam > Black /White List to display the Anti-Spam Black List screen.
Configure the black list to identify spam e-mail. You can create black list entries based on the
sender’s or relay server’s IP address or e-mail address. You can also create entries that check
for particular e-mail header fields with specific values or specific subject text.
sender’s or relay server’s IP address or e-mail address. You can also create entries that check
for particular e-mail header fields with specific values or specific subject text.
Table 178 Anti-X > Anti-Virus > General > Add
LABEL
DESCRIPTION
Enable Policy
Select this check box to have the ZyWALL apply this anti-spam policy to check e-
mail traffic for spam.
mail traffic for spam.
Log
Select how the ZyWALL is to log the event when the DNSBL times out or an e-mail
matches the white list, black list, or DNSBL.
no: Do not create a log.
log: Create a log on the ZyWALL.
log alert: An alert is an e-mailed log for more serious events that may need more
immediate attention. Select this option to have the ZyWALL send an alert.
matches the white list, black list, or DNSBL.
no: Do not create a log.
log: Create a log on the ZyWALL.
log alert: An alert is an e-mailed log for more serious events that may need more
immediate attention. Select this option to have the ZyWALL send an alert.
From
To
To
Select source and destination zones for traffic to scan for spam. The anti-spam
policy has the ZyWALL scan traffic coming from the From zone and going to the
To zone.
policy has the ZyWALL scan traffic coming from the From zone and going to the
To zone.
Protocols to Scan
Select which protocols of traffic to scan for spam.
SMTP applies to traffic using TCP port 25.
POP3 applies to traffic using TCP port 110.
SMTP applies to traffic using TCP port 25.
POP3 applies to traffic using TCP port 110.
Check White List
Select this check box to check e-mail against the white list. The ZyWALL classifies
e-mail that matches a white list entry as legitimate (not spam).
e-mail that matches a white list entry as legitimate (not spam).
Check Black List
Select this check box to check e-mail against the black list. The ZyWALL classifies
e-mail that matches a black list entry as spam.
e-mail that matches a black list entry as spam.
Check DNSBL
Select this check box to check e-mail against the ZyWALL’s configured DNSBL
domains. The ZyWALL classifies e-mail that matches a DNS black list as spam.
domains. The ZyWALL classifies e-mail that matches a DNS black list as spam.
Actions for Spam
Mail
Use this section to set how the ZyWALL is to handle spam mail.
SMTP
Select how the ZyWALL is to handle spam SMTP mail.
Select drop to discard spam SMTP mail.
Select forward to allow spam SMTP mail to go through.
Select forward with tag to add a spam tag to an SMTP spam mail’s mail subject
and send it on to the destination.
Select drop to discard spam SMTP mail.
Select forward to allow spam SMTP mail to go through.
Select forward with tag to add a spam tag to an SMTP spam mail’s mail subject
and send it on to the destination.
POP3
Select how the ZyWALL is to handle spam POP3 mail.
Select forward to allow spam POP3 mail to go through.
Select forward with tag to add a spam tag to an POP3 spam mail’s mail subject
and send it on to the destination.
Select forward to allow spam POP3 mail to go through.
Select forward with tag to add a spam tag to an POP3 spam mail’s mail subject
and send it on to the destination.
OK
Click OK to save your changes.
Cancel
Click Cancel to exit this screen without saving your changes.