New keyword expressions can be defined and saved, and then applied to a policy rule.
Procedure
- Go to .
 - Click Add.
 - Type a name for the list of keyword expressions.
 - Next to Match, select one of the following that
                        specifies when Trend Micro Email
                           Security takes action:
- 
Select Any specified to match keywords based on a logical OR.
 - 
Select All specified to match keywords based on a logical AND.
 - 
Select Not the specified to apply the policy rule to messages that do not contain the keywords.
 - 
Select Only when combined score reaches threshold to apply the policy rule to messages that contains one or more keywords whose combined score reaches a 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
Score. 
 - 
 - Create keyword expressions for the list.
- Click Add.
 - Specify a keyword expression, set whether it is case sensitive, specify a description for the added keyword expression, and click Save.
 - In the Test Area section, test the keyword
                              expression against actual data.For example, if the expression is for a national ID, type a valid ID number in the Test data text box, click Test, and then check the result.
 - Click Save if you are satisfied with the result.
 
 - Click Save.
 
		