Anti-Spam External Db Screen - ZyXEL Communications ZYWALL 35 User Manual

Table 87 SECURITY > ANTI-SPAM > General
LABEL
Forward SMTP & POP3
mail with tag in mail
subject
Discard SMTP mail.
Forward POP3 mail
with tag in mail subject
Action taken when mail
sessions threshold is
reached
Apply
Reset

15.3 Anti-Spam External DB Screen

Click SECURITY > ANTI-SPAM > External DB to display the Anti-Spam External DB
screen.
Use this screen to enable or disable the use of the anti-spam external database. You can also
configure the spam threshold and what to do when no valid spam score is received. You must
register for this service before you can use it (see
ZyWALL 5/35/70 Series User's Guide
DESCRIPTION
Select this radio button to have the ZyWALL forward spam e-mail with the
tag that you define.
Even if you plan to use the discard option, you may want to use this initially
as a test to check how accurate your anti-spam settings are. Check the e-
mail the ZyWALL forwards to you to make sure that unwanted e-mail is
marked as spam and legitimate e-mail is not marked as spam.
Select this radio button to have the ZyWALL discard spam SMTP e-mail.
The ZyWALL will still forward spam POP3 e-mail with the tag that you define.
The anti-spam feature limits the number of concurrent e-mail sessions. An e-
mail session is when an e-mail client and e-mail server (or two e-mail
servers) connect through the ZyWALL. Use this section to configure what the
ZyWALL does when the number of concurrent e-mail sessions goes over the
threshold (see the chapter of product specifications for the threshold).
Select Forward to have the ZyWALL allow the excess e-mail sessions
without any spam filtering.
Select Block to have the ZyWALL drop mail connections to stop the excess
e-mail sessions. The e-mail client or server will have to attempt to send or
receive e-mail later when the number of e-mail sessions is under the
threshold.
Click Apply to save your changes back to the ZyWALL.
Click Reset to begin configuring this screen afresh.
Chapter 15 Anti-Spam
Chapter 5 on page 141 for details).
313