Symantec Security 5600 Series, Security 5400 Series,Clientless VPN 4400 Series, Administration Manual

Page: 359 / 861

358 Preventing attacks
Increasing productivity by identifying spam email
Adding antispam protection to a rule
You can create or modify an email rule to select the methods that you want to use to identify spam. You
can configure these options separately for SMTP and POP3 on a rule-by-rule basis.
Configure the spam detection settings, and then create a rule that enables the spam detection methods
that you want to use.
Prerequisites
None.
To add antispam protection to a rule
1 In the SGMI, in the left pane, under Policy, click Firewall .
2
In the right pane, on the Rules tab, do one of the following:
■
To set up a new rule, click New .
■
To modify an existing rule, highlight the rule, and then click Properties .
3 In the Rule Properties dialog box, on the Antispam tab, select the method to use for identifying
spam:
4 Click OK .
5 Optionally, do one of the following:
■
To save your configuration now and activate later, on the toolbar, click Save .
■
To activate your configuration now, on the toolbar, click Activate .
When prompted to save your changes, click Yes .
Related information
For further information related to this topic, see the following:
■
“Blocking spam using real-time blacklists” on page 352
■
“Reducing false positives by bypassing the real-time blacklists” on page 356
■
“Identifying spam using a custom known spammers list” on page 354
■
“Reducing false positives using a custom allow list” on page 357
■
“Identifying spam using heuristic antispam scanning” on page 353
■
“Identifying spam using subject pattern matching” on page 355
■
“Configuring rules” on page 272
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“Identifying spam email” on page 351
■
“Reducing false positives” on page 356
Real-time blacklist server Enables the Real-time blacklist servers and Real-time blacklisted senders to allow
features.
Senders list Enables the Email senders to allow and Email senders identified as spam features.
Heuristic scanning Enables heuristic antispam scanning.
Subject pattern matching Enables the Subject pattern matching and Identify messages with no subject line
as spam features.