Managing filters

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Working with Filters and Policies > Managing filters

Managing filters

Administrator Help | TRITON AP-EMAIL | Version 8.0.x

The following predefined default filter types can be used in email analysis: virus, URL analysis, spam, commercial bulk email, file sandbox, and disclaimer. The virus filter analyzes an email message and its attachments for the presence of viruses and other threats. URL analysis examines email content for embedded URLs and classifies them according to a database of known spam URLs. The spam filter analyzes email content and compares it against a database of known spam characteristics. You can select from a variety of antispam tools, including digital fingerprinting, LexiRules, and heuristics analysis tools. The commercial bulk email filter analyzes a message to determine whether it was sent from a business for advertising purposes. The file sandbox filter inspects email attachment file types that commonly contain security threats (including .exe, .pdf, .xls, .xlsx, .doc, .docx, .ppt, .pptx, and archive files). If you want to add text at the beginning or end of a message, use the disclaimer filter.

You can also create a custom content filter to scan a message based on message component conditions you configure. The Email module does not provide a default custom content filter.

Filters are created and managed via the Main > Policy Management > Filters page. Click Add to open the Add Filter page and set the properties of your new filter (see Creating and configuring a filter).

You can also copy a filter whether or not it is in use by a policy. A filter can be deleted, as long as it is not in use by any policy. However, you cannot copy or delete any default filter.

Copying a filter

Copy an existing filter by marking the check box to the left of the filter name to select it and clicking Copy. Enter a new filter name in the Copy Filter dialog box, and click OK. Click the new filter name in the Filters list to open the Edit Filter page and modify filter attributes.

Deleting a filter

Delete a filter from the Filters list by marking the check box to the left of the filter name and clicking Delete. You can delete a filter only if it is not being used by a policy.

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Working with Filters and Policies > Managing filters