ZyXEL Communications 100 Series User Manual

Chapter 33 Anti-Spam

ZyWALL USG 100/200 Series User’s Guide

Click Anti-X > Anti-Spam > DNSBL to display the anti-spam DNSBL screen. Use this 
screen to configure the ZyWALL to check the sender and relay IP addresses in e-mail headers 
against DNS (Domain Name Service)-based spam Black Lists (DNSBLs). 

Total Rule 

This is the number of entries configured.

rules per page

Select how many entries you want to display on each page.

Page x of x

This is the number of the page of entries currently displayed and the total 
number of pages of entries. Type a page number to go to or use the arrows to 
navigate the pages of entries.

#

This is the entry’s index number in the list.

Type

This field displays whether the entry is based on the e-mail’s subject, source or 
relay IP address, source e-mail address, or a header.

Content

This field displays the subject content, source or relay IP address, source e-mail 
address, or header value for which the entry checks.

Add icon

This column provides icons to add, activate / deactivate, edit, and remove 
entries.
To add an entry, click the Add icon at the top of the column. See 

 for how to add or edit an entry.

Click an entry’s Active icon to activate or deactivate the entry. Make sure you 
click Apply to save and apply the change. 
Click an entry’s Edit icon to edit the entry. See 

 for 

how to add or edit an entry.
To delete an entry, click the entry’s Remove icon. The web configurator 
confirms that you want to delete the entry.

OK

Click OK to save your changes. 

Cancel

Click Cancel to exit this screen without saving your changes.

Table 181   Anti-X > Anti-Spam > Black/White List > White List (continued)