Sidewinder G2 6.1.2 Administration Guide - Glossary of Technical ...

Chapter 6: Configuring Application Defenses
Creating Mail (Sendmail) Application Defenses
Creating Mail
(Sendmail)
Application
Defenses
172
Figure 78: Application
Defenses: Mail (Sendmail)
window
• Delay—Slows the download process of filtered sites. This discourages
users from browsing certain sites because it takes longer for those
pages to be displayed. The delay time is specified on the Set
SmartFilter Delay field on the main SmartFilter tab.
Configuring the SmartFilter File Extension window
This window allows you to specify file extensions that will be denied. To add a
file extension that you want to deny, type the extension in the Denied File
Extension window. Do not include a period (.) in front of the file extension.
Mail (Sendmail) Application Defenses are used in SMTP proxy rules. To
configure Mail (Sendmail) Application Defenses, in the Admin Console select
Policy Configuration > Application Defenses > Defenses > Mail (Sendmail).
The following window appears. (Figure 78 displays only the bottom portion of
the window.)
Note: You must have Secure Split SMTP mail servers configured to use mail
filtering.
Configuring the Mail (Sendmail) Control tab
This tab allows you to configure filtering for sendmail services. The Anti-Relay
feature prevents your mailhost from being used by a hacker as a relay point for
spam to other sites. This option is automatically enabled for all mail defenses
and cannot be disabled.