Руководство Пользователя для Cisco Cisco Email Security Appliance C170

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.