Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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 

 displays the encryption headers that you can add to messages.

X-PostX-Reply-Enabled

Indicates whether to enable secure reply 
for the message and displays the Reply 
button in the message bar. This header 
adds an encryption setting to the 
message.

A Boolean for whether to 
display the Reply button. Set 
to 

true

 to display the button. 

The default value is 

false

. 

X-PostX-Reply-All-Enabled

Indicates whether to enable secure “reply 
all” for the message and displays the 
Reply All button in the message bar. This 
header overrides the default profile 
setting.

A Boolean for whether to 
display Reply All button. 
Set to 

true

 to display the 

button. The default value is 

false

.

X-PostX-Forward-Enabled

Indicates whether to enable secure 
message forwarding and displays the 
Forward button in the message bar. This 
header overrides the default profile 
setting.

A Boolean for whether to 
display the Forward button. 
Set to 

true

 to display the 

button. The default value is 

false

.

X-PostX-Send-Return-Recei

pt

Indicates whether to enable read receipts. 
The sender receives a receipt when 
recipients open the Secure Envelope. 
This header overrides the default profile 
setting.

A Boolean for whether to 
send a read receipt. Set to 

true

 to display the button. 

The default value is 

false

.