Cisco Cisco Email Security Appliance C170 사용자 가이드

Rule for 
detecting high 
volume mail 
attacks

AsyncOS now includes a new rule, Header Repeats (

header-repeats

) rule, for 

detecting high volume mail attacks. When used in message filters, the Header 
Repeats rule evaluates to 

true

 if at a given point in time, a specified number of 

messages:

With same subject are detected in the last one hour.

From same envelope sender are detected in the last one hour.

See 

Upgrade 
notification

A notification now appears at the top of the web interface when a new AsyncOS 
upgrade is available. See 

. 

Virtual appliance 
support 

The following deployment options are now supported: 

Deployments with VMWare ESXi5.1 hypervisor 

Deployment as part of a FlexPod solution 

For general information about FlexPod, see 

. 

Virtual license expiration now includes a 180-day grace period, during which 
the appliance continues to deliver mail without security services. 

Option to drop an 
email with 
corrupt 
attachment

You can now configure your content filters to drop emails containing corrupt 
attachments. See 

.

Envelope 
localization

If you are using Cisco Registered Envelope Service for email encryption, you can 
change the locale of the envelope to any one of the following locales: 

English

French 

German 

Spanish 

Portuguese 

Japanese

See 

.

Provision and 
activate Cisco 
Registered 
Envelope Service 
administrator 
from the 
appliance

You can now provision and activate Cisco Registered Envelope Service 
administrator from your appliance. The appliance prompts you to enter the email 
address of the encryption account administrator. When you provision an Encryption 
Profile, this email address is registered automatically with the encryption server. 
See