Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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. 

Select whether to always encrypt messages that meet the condition or to only 
encrypt messages if the attempt to send it over a TLS connection fails.