Cisco Cisco Email Security Appliance C170 사용자 가이드

Once you add the content filter, you need to add the filter to an outgoing mail policy. You may want to 
enable the content filter on the default policy, or you may choose to apply the filter to a specific mail 
policy, depending on your organization’s needs. For information about working with mail policies, see 

To create a content filter to encrypt a message on delivery, which means that the message continues to 
the next stage of processing, and when all processing is complete, the message is encrypted and 
delivered:

Go to Mail Policies > Outgoing Content Filters.

In the Filters section, click Add Filter.

In the Conditions section, click Add Condition.

Add a condition to filter the messages that you want to encrypt. For example, to encrypt sensitive 
material, you might add a condition that identifies messages containing particular words or phrases, such 
as “Confidential,” in the subject or body.

Click OK.

For more details about building conditions, see 

Optionally, click Add Action and select Add Header to insert an encryption header into the messages 
to specify an additional encryption setting.

For more information about encryption headers, see 

In the Actions section, click Add Action.

Select Encrypt on Delivery.