Before You Begin; The Anti-Spam General Screen - ZyXEL Communications ZYWALL USG 2000 Manual

Unified security gateway

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Table of Contents

Chapter 34 Anti-Spam

34.2 Before You Begin

Configure your zones before you configure anti-spam.

Click Anti-X > Anti-Spam to open the Anti-Spam General screen. Use this

screen to turn the anti-spam feature on or off and manage anti-spam policies. You

can also select the action the ZyWALL takes when the mail sessions threshold is

Figure 386 Anti-X > Anti-Spam > General

The following table describes the labels in this screen.

Table 168 Anti-X > Anti-Spam > General

Enable Anti-

Action taken

threshold is

Click Advanced to display more settings. Click Basic to display fewer

Select this check box to check SMTP (TCP port 25) and POP3 (TCP port

110) traffic for spam e-mail.

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 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.

ZyWALL USG 2000 User's Guide