Procedure

1. Go to Policy → Keywords & Expressions.
   The Keywords & Expressions screen appears.
2. Click Add.
   The Add Keyword Expression screen appears.
3. Next to List name, specify a descriptive name.
4. Next to Match, select one of the following that specifies when IMSS takes action:
   • Any specified: Message content matches any of the keywords or expressions in the list.
   • All specified: Message content matches all keywords or expressions in the list.
   • Not the specified: Message content does not match any of the keywords or expressions in the list.
   • Only when combined score exceeds threshold: Message content contains one or more keywords or expressions in the list. If only one keyword or expression was detected, its score must be higher than the threshold. If several keywords or expressions are detected, their combined score must be higher than the threshold.
     Next to Total message score to trigger action, specify a number that represents the maximum score for allowed keyword expressions. When you add an expression, you can set a value for the Score.
5. To create a new keyword expression, do the following:
   1. Click Add.
      The Add Keyword Expression list appears.
   2. Define the following parameters:

      Keyword

      Specify the keywords. For a partial match, specify the keyword. To specify an exact match, use \b before and after the keyword.

      For example:

      • keyword matches "keywords", "akeyword"
      • \bkeyword\b matches "keyword" only

      Case sensitive

      Make the keyword expression case sensitive.

      Description

      Specify a description for the added keyword expression to make it easier to understand.

   3. Click Save.
6. If you selected Only when combined score exceeds threshold:
   1. Specify a threshold in the Total message score to trigger action field.
   2. Select a value from the Score drop-down box.
7. Click Save.
   The Keywords & Expressions screen appears with the new keyword or expression appearing in the table.