Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

The 

reputation

 rule checks the SenderBase Reputation Score against another value. All the comparison 

operators are allowed, such as 

>

, 

==

, 

<=,

 and so forth. If the message does not have a SenderBase 

Reputation Score at all (because one was never checked for it, or because the system failed to get a 
response from the SenderBase Reputation Service query server), any comparison against a reputation 
fails (the number will not be greater than, less than, equal to, or not equal to any value). You can check 
for a SBRS score of “none” using the 

no-reputation

 rule described below. The following example 

adjusts the “Subject:” line of a message to be prefixed by “

*** BadRep ***

” if the reputation score 

returned from the SenderBase Reputation Service is below a threshold of -7.5..

 For more information, see the “Sender Reputation Filtering” chapter. See also 

Values for the SenderBase Reputation rule are -10 through 10, but the value 

NONE

 may also be returned. 

To check specifically for the value 

NONE

, use the 

no-reputation

 rule.

The 

dictionary-match(<

dictonary_name>) rule evaluates to 

true

 if the message body contains any of 

the regular expressions or terms in the content dictionary named “dictonary_name.” If the dictionary 
does not exist, the rule evaluates to 

false

. For more information on defining dictionaries (including their 

case sensitivity and word boundary settings), see the “Text Resources” chapter. 

        drop();

   }

note_bad_reps:

   if (reputation < -7.5) {

        strip-header ('Subject');

        insert-header ('Subject', '*** BadRep $Reputation *** $Subject');

   }

none_rep:

   if (no-reputation) {

       strip-header ('Subject');

        insert-header ('Subject', '*** Reputation = NONE *** $Subject');

   }