Cisco Cisco Email Security Appliance C380 Guida Utente

X-PostX-ExpirationDate

Defines a Registered Envelope’s 
expiration date before sending it. The 
key server restricts access to the 
Registered Envelope after the 
expiration date. The Registered 
Envelope displays a message 
indicating that the message has 
expired. This header adds an 
encryption setting to the message.

If you use Cisco Registered Envelope 
Service, you can log in to the website 
at 

http://res.cisco.com 

and use 

the message management features to 
set, adjust, or eliminate the expiration 
dates of messages after you send 
them.

A string value containing 
relative date or time. Use 
the 

+HH:MM:SS

 format for 

relative hours, minutes, 
and seconds, and the 

+D

 

format for relative days. 
By default, there is no 
expiration date.

X-PostX-ReadNotificati

onDate

Defines the Registered Envelope’s 
“read by” date before sending it. The 
local key server generates a 
notification if the Registered 
Envelope has not been read by this 
date. Registered Envelopes with this 
header do not work with Cisco 
Registered Envelope Service, only a 
local key server. This header adds an 
encryption setting to the message.

A string value containing 
relative date or time. Use 
the 

+HH:MM:SS

 format for 

relative hours, minutes, 
and seconds, and the 

+D

 

format for relative days. 
By default, there is no 
expiration date.