Cisco Cisco Email Security Appliance C190 Guía Del Usuario
11-3
User Guide for AsyncOS 10.0 for Cisco Email Security Appliances
Chapter 11 Content Filters
Content Filter Conditions
Multiple conditions may be defined for each filter. When multiple conditions are defined, you can choose
whether the conditions are tied together as a logical OR (“Any of the following conditions...”) or a logical
AND (“All of the following conditions”).
whether the conditions are tied together as a logical OR (“Any of the following conditions...”) or a logical
AND (“All of the following conditions”).
Table 11-1
Content Filter Conditions
Condition
Description
(no conditions)
Specifying conditions in content filters is optional. If no conditions are
specified, a
specified, a
true
rule is implied. The
true
rule matches all messages, and
the actions are always performed.
Message Body or
Attachments
Attachments
Contains text: Does the message body contain text or an attachment that
matches a specific pattern?
matches a specific pattern?
Contains smart identifier: Does content in the message body or
attachment match a smart identifier?
attachment match a smart identifier?
Contains term in content dictionary: Does the message body contain any
of the regular expressions or terms in the content dictionary named
<dictionary name>?
of the regular expressions or terms in the content dictionary named
<dictionary name>?
For this option to be enabled, the dictionary must already have been
created. See
created. See
.
Note
The dictionary-related conditions are only available if you have
one or more dictionaries enabled. For information about creating
content dictionaries, see
one or more dictionaries enabled. For information about creating
content dictionaries, see
.
Number of matches required. Specify the number of matches required
for the rule to evaluate to true. You can specify this threshold for text, smart
identifiers, or content dictionary terms.
for the rule to evaluate to true. You can specify this threshold for text, smart
identifiers, or content dictionary terms.
This includes delivery-status parts and associated attachments.