Справочник Пользователя для ZyXEL Communications 1000

Chapter 38 Anti-Spam

ZyWALL USG 1000 User’s Guide

spam policies. You can also select the action the ZyWALL takes when the mail 
sessions threshold is reached.  

Figure 440   Configuration > Anti-X > Anti-Spam > General

The following table describes the labels in this screen. 

Table 172   Configuration > Anti-X > Anti-Spam > General

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.