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

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355 Preventing attacks
Increasing productivity by identifying spam email
4
On the Response tab, under Email senders identified as spam (SMTP only), select one of the
following:
■
Block the mail message
■
No response
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 .
6 To apply these settings, create a rule and, on the Antispam tab, check Senders lists .
Related information
For further information related to this topic, see the following:
■
“Adding antispam protection to a rule” on page 358
■
“Understanding and using licenses” on page 86
Identifying spam using subject pattern matching
The security gateway lets you identify spam email based on the content in the subject line. When the
content of an email message subject line matches a pattern that you specify, the security gateway
handles the email based on the settings that you configure. You can block the email message or send
the message to the recipient unmodified.
Ensure that you enable the subject pattern matching setting in the appropriate firewall rule. You must
also have a valid Content Security license. If you do not, the security gateway does not attempt to use
this antispam scanning process.
Note: This feature is only available for the SMTP protocol.
Prerequisites
None.
To identify spam using subject pattern matching
1 In the SGMI, in the left pane, under Policy, click Antispam .
2 In the right pane, on the Configuration tab, to the right of the Subject patterns identified as spam
list, click
Add .
3 In the Subject patterns identified as spam dialog box, in the Subject pattern text box, type the
subject line content that you want to identify as spam.
4 Click OK .
5
To identify email messages without subject lines as spam, under the Subject patterns identified as
spam list, check
Identify messages with no subject line as spam .
6 On the Response tab, under Subject patterns identified as spam (SMTP only), select one of the
following:
■
Block the mail message
■
No response
7
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 .