Cisco Cisco Email Security Appliance C160 Mode D'Emploi

Select Encrypt on Delivery from the Add Action list.

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.

Select the encryption profile to associate with the content filter.

The encryption profile specifies settings about the key server to use, levels of security, formatting of the 
message envelope, and other message settings. When you associate an encryption profile with the 
content filter, the content filter uses these stored settings to encrypt messages.

Enter a subject for the message.

Click OK.

After you add the encrypt action, click Submit.

Commit your changes.

After 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 

AsyncOS enables you to add encryption settings to a message by inserting an SMTP header into a 
message using either a content filter or a message filter. The encryption header can override the 
encryption settings defined in the associated encryption profile, and it can apply specified encryption 
features to messages.

The Cisco Ironport Encryption appliance must be set up to handle flagged messages.

Go to Mail Policies > Outgoing Content Filters or Incoming Content Filters.

In the Filters section, click Add Filter.

In the Actions section, click Add Action and select Add/Edit Header to insert an encryption header 
into the messages to specify an additional encryption setting.

For example, if you want a Registered Envelope to expire in 24 hours after you send it, type 

X-PostX-ExpirationDate

 as the header name and 

+24:00:00

 as the header value. 

For more information about creating an encryption content filter, see 

For information about inserting a header using a message filter, see 

.