Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

You can also use smart identifiers in content filters and as a part of content 
dictionaries.

You cannot combine a smart identifier key word with a normal regular expression 
or another key word. For example the pattern 

*credit|*ssn 

would not be valid. 

To minimize on false positives using the *SSN smart identifier, it may be helpful 
to use the *ssn smart identifier along with other filter criteria. One example filter 
that can be used is the “only-body-contains” filter condition. This will only 
evaluate the expression to be true if the search string is present in all of the 
message body mime parts. For example, you could create the following filter:

SSN-nohtml: if only-body-contains(“*ssn”) { 

duplicate-quarantine(“Policy”);}

The following section shows examples of message filter rules in use.

The 

true

 rule matches all messages. For example, the following rule changes the 

IP interface to external for all messages it tests.

notify("legaldept@example.com");

}

.

externalFilter:

   if (true)

   {