Cisco Cisco Email Security Appliance C170 사용자 가이드

This chapter discusses creating and managing various text resources, such as 
content dictionaries, DLP dictionaries, disclaimers, and templates.

You can use content dictionaries to scan messages against message or content 
filters in order to take appropriate action in accordance with your corporate 
policies. You can create, delete, and view dictionaries; add and delete entries from 
a dictionary; and import and export entire dictionaries. You can also determine 
case sensitivity and word boundary detection for each dictionary. For example, 
you could create a list of confidential or profane words, and, using a filter rule to 
scan messages for words in the list, drop or archive messages containing matching 
words. And you can add a “weight” terms in a dictionary so that certain terms 
trigger a filter action more easily. 

Dictionaries can contain non-ASCII characters.

You can use data los prevention (DLP) dictionaries in custom DLP policies to scan 
outgoing messages for sensitive information. Similar to content dictionaries, you 
can create, delete, and view dictionaries; add and delete entries from a dictionary; 
and import and export entire dictionaries. Unlike content dictionaries, terms in 
DLP policies do not have a “weight.” AsyncOS comes with a set of predefined 
dictionaries from RSA Security Inc., but you can create custom DLP dictionaries.