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Defining Email Policies > Content Filter tab > Filtering using lexical rules
Filtering using lexical rules
 
Related topics:
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Managing dictionaries
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Creating a lexical rule in advanced mode
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Creating a lexical rule in simple mode
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Creating a compliance rule
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Phrase score and lexical rule thresholds
The lexical rules feature provides a powerful content filtering capability to mitigate the risks associated with email. A lexical rule compares words in a dictionary to those in an email and performs an action when there is a match.
You can use this feature to analyze messages for profanity and other undesirable content entering or leaving your organization. This might be profanity or inappropriate words but could also include company confidential information, or communications that could cause loss of business, or loss of reputation.
 
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Note 
We do not recommend using this feature to attempt to block spam, because generating ad-hoc rules is both time-consuming and prone to the introduction of false positives.
To set up lexical filtering rules, select the Content Filter tab of your policy, then click the link under Inbound or Outbound content: Filter using these lexical rules.
From this screen you can do the following:
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To add new lexical rules, click one of the buttons under Add Lexical Rule.
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To edit an existing rule, click the rule you want to edit.

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Defining Email Policies > Content Filter tab > Filtering using lexical rules
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