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86 Administrator’s Guide SurfControl RiskFilter - E-mail V5.2.4
P
OLICY
M
ANAGER
Global Policy
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Configuring the Anti-Spam Agent - Heuristics Filter
The Anti-Spam Agent - Heuristics filter is configured in the Anti-Spam Agent Heuristics screen.
Figure 3 - 21 The Anti-Spam - Heuristics screen
To cofigure the Anti-Spam Agent - Heuristics filter:
1Select Global Policy from the Policy Manager tab.
2 Click Filters. The Global Policy Filter list screen is displayed.
3 Click Add. The Create New Filter screen is displayed.
4Select Anti-Spam Agent - Heuristics.
5 Click Next.
6 Enter a name into the Filter Name field.
7 This filter is enabled by default. Select the ‘disable’ option if you want to switch it off.
8 If you want to make the filter so that it can be overwritten by a sub-policy change the Filter
Permission setting to writable. The default is read-only.
9 Select the Sensitivity Level. This sets how strictly RiskFilter scans messages:
• Lowest – You should not get any false positives with this setting but it is very likely that some
spam messages will not be stopped.
• Low – Only messages that are definitely spam will be stopped. With this setting, false positives will
be less but you also run the risk of messages that are spam getting through.
• Medium – More messages will be stopped as the criteria for deciding whether a message is spam
or not, is much wider. However, some messages that are not spam may be stopped.
Note: You will only see this if you have not added an Anti-Spam Heuristics Filter previously.