Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
Chapter 12 Cisco IronPortEmail Encryption
12-16
Cisco IronPort AsyncOS 7.5 for Email Configuration Guide
OL-25136-01
Inserting Encryption Headers into Messages
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.
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.
To add an encryption header to a message by using a content filter, add the Add
Header filter action to the content filter, and enter the encryption header and its
value. For example, if you want a Registered Envelope to expire in 24 hours after
you send it, type
Header filter action to the content filter, and enter the encryption header and its
value. 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.