Cisco Cisco Email Security Appliance C160 Mode D'Emploi
11-18
Cisco AsyncOS 9.5 for Email User Guide
Chapter 11 Content Filters
Filtering Messages Based on Content
Step 2
Click the link for the Content Filters security service in the default policy row.
Step 3
On the Content Filtering security service page, change the value Content Filtering for Default Policy
from “Disable Content Filters” to “Enable Content Filters (Customize settings).”
from “Disable Content Filters” to “Enable Content Filters (Customize settings).”
The content filters defined in the master list (which were created in
) are displayed on this page. When you change the value to “Enable Content Filters (Customize
settings),” the checkboxes for each filter become enabled.
Step 4
Check the Enable checkbox for each content filter you want to enable.
Step 5
Submit and commit your changes.
Applying the Content Filter to Messages for a Certain User Group
Before You Begin
•
Create an incoming or outgoing mail policy for the group of users whose messages for which you
want to use the content filter. See
want to use the content filter. See
for more information.
Procedure
Step 1
Click Mail Policies > Incoming Mail Policies
or
Mail Policies > Outgoing Mail Policies.
Step 2
Click the link for the Content Filters security service (the Content Filters column) for the mail policy to
which you want to apply the content filter.
which you want to apply the content filter.
Step 3
On the Content Filtering security service page, change the value for Content Filtering for Policy:
Engineering from “Enable Content Filtering (Inherit default policy settings)” to “Enable Content
Filtering (Customize settings).”
Engineering from “Enable Content Filtering (Inherit default policy settings)” to “Enable Content
Filtering (Customize settings).”
Step 4
Select the checkboxes for the content filters you want to use.
Step 5
Submit and commit your changes.
Notes on Configuring Content Filters in the GUI
•
It is not necessary to specify a condition when creating a content filter. When no action is defined,
any actions defined will always apply in the rule. (Specifying no condition is equivalent to using the
any actions defined will always apply in the rule. (Specifying no condition is equivalent to using the
true()
message filter rule — all messages will be matched if the content filter is applied to a policy.)
•
If you do not assign a custom user role to a content filter, the content filter is public and can be used
by any delegated administrator for their mail policies. See the “Common Administrative Tasks”
chapter for more information on delegated administrators and content filters.
by any delegated administrator for their mail policies. See the “Common Administrative Tasks”
chapter for more information on delegated administrators and content filters.
•
Administrators and operators can view and edit all content filters on an appliance, even when the
content filters are assigned to custom user roles.
content filters are assigned to custom user roles.
•
When entering text for filter rules and actions, the following meta characters have special meaning
in regular expression matching:
in regular expression matching:
. ^ $ * + ? { [ ] \ | ( )