ZyXEL Communications ZyWALL USG 100 Series - Page 684

Chapter 38 Anti-Spam
ZyWALL USG 100/200 Series User’s Guide
684
spam policies. You can also select the action the ZyWALL takes when the mail
sessions threshold is reached.
Figure 465 Configuration > Anti-X > Anti-Spam > General
The following table describes the labels in this screen.
Table 181 Configuration > Anti-X > Anti-Spam > General
LABEL DESCRIPTION
Show Advance
Settings / Hide
Advance
Settings
Click this button to display a greater or lesser number of configuration
fields.
General
Settings
Enable Anti-
Spam
Select this check box to check SMTP (TCP port 25) and POP3 (TCP port
110) traffic for spam e-mail.
Action taken
when mail
sessions
threshold is
reached
An e-mail session is when an e-mail client and e-mail server (or two e-
mail servers) connect through the ZyWALL. Select how to handle
concurrent e-mail sessions that exceed the maximum number of
concurrent e-mail sessions that the anti-spam feature can handle. See
the chapter of product specifications for the threshold.
Select Forward Session to have the ZyWALL allow the excess e-mail
sessions without any spam filtering.
Select Drop Session to have the ZyWALL drop mail connections to stop
the excess e-mail sessions. The e-mail client or server will have to re-
attempt to send or receive e-mail later when the number of e-mail
sessions is under the threshold.
Policy
Summary
Add Click this to create a new entry. Select an entry and click Add to create a
new entry after the selected entry.
Edit Select an entry and click this to be able to modify it.