Cisco Cisco Email Security Appliance C170 사용자 가이드

Specify whether to send bounce message for hard bounce. If this option is 
enabled, you can choose the format of the bounce message. By default, bounce 
messages use the DSN format (RFC 1894). 

You can also send customized bounce messages based on the language of the 
original message (subject and body). For example, you may want to send bounce 
messages in Chinese for messages in Chinese and bounce messages in English 
for all the messages in other languages.

Under Notification Template, click Add Row and choose the message language 
and the template that you want to use. 

Make sure that you do not delete the default entry (Message Language 
set to Default). You can change the bounce notification template for the 
default entry. 

The language of a message is considered Default in the following scenarios: 

If the language of the message is different from the language selected in the 
other Notification Template entries. 

If the language of the message is not supported by Cisco Email Security 
appliance.

If the appliance is unable to detect the language of the message.

If the content (subject and body) in the message is less than 50 bytes. 

While configuring the above example (send bounce messages in Chinese for 
messages in Chinese and bounce messages in English for all the messages in 
other languages,) the Notification Template table will look like this:

You can also choose whether to parse the DSN status field from the bounce 
response. If you choose “Yes,” the appliance searches the bounce response for a 
DSN status code (RFC 3436) and uses the code in the Status field of the delivery 
status notification.