Cisco Cisco Email Security Appliance C160 Guía Del Usuario
18-4
Cisco AsyncOS 8.0.1 for Email User Guide
Chapter 18 Text Resources
Content Dictionaries
Adding Dictionaries
Procedure
Step 1
Navigate to the Mail Policies > Dictionaries page.
Step 2
Click Add Dictionary.
Step 3
Type a name for the dictionary.
Step 4
(Optional) Configure Advanced Matching.
Note
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.
in the configuration file. AsyncOS does not preserve these settings when importing and
exporting dictionaries.
Step 5
(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 in Cisco IronPort
AsyncOS for Email Advanced Configuration Guide.
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 in Cisco IronPort
AsyncOS for Email Advanced Configuration Guide.
Step 6
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.
put each new term on its own line.
Note
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 “
you do not use “
.*
” at the beginning or end of a content dictionary entry.
Step 7
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 of the Cisco
IronPort AsyncOS for Email Advanced Configuration Guide.
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 of the Cisco
IronPort AsyncOS for Email Advanced Configuration Guide.
Step 8
Click Add.
Step 9
Submit and commit your changes.
Related Topics
•
Deleting Dictionaries
Before You Begin
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.
AsyncOS leaves any content filter that references the deleted dictionary enabled, but will evaluate them
to false.