Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

AsyncOS preserves the Match Whole Words and Case Sensitive settings when you save them 
in the configuration file. AsyncOS does not preserve these settings when importing and 
exporting dictionaries.

(Optional) Add a smart-identifier to the dictionary. 

Smart identifiers are algorithms that search for patterns in data that correspond to common numeric 
patterns, such as social security numbers and ABA routing numbers. For more information about smart 
identifiers, see the “Using Message Filters to Enforce Email Policies” chapter.

Enter new dictionary entries into the list of terms. 

If you have multiple new entries to add, and you want them to be equally likely trigger a filter action, 
put each new term on its own line.

Content dictionary entries with the regular expression: “

.*

” at the beginning or end will cause 

the system to lock if a match for the “word” MIME part is found. Cisco Systems recommends 
you do not use “

.*

” at the beginning or end of a content dictionary entry.

Specify a weight for the term(s). 

You can “weight” a dictionary term so that it is more likely than other terms to trigger a filter action. For 
more information about how this weight is used to determine filter actions, see “Threshold Scoring for 
Content Dictionaries” in the “Using Message Filters to Enforce Email Policies” chapter.

Click Add.

Submit and commit your changes.

Be aware that AsyncOS marks any message filter that references the deleted dictionary as invalid. 
AsyncOS leaves any content filter that references the deleted dictionary enabled, but will evaluate them 
to false.

Navigate to the Mail Policies > Dictionaries page.

Click the trash can icon next to the dictionary to delete in the dictionary listing. 

A confirmation message lists any filters that are currently referencing the dictionary.

Click Delete in the confirmation message.

Commit your changes.