Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

DMARC 
Verification

AsyncOS for Email now allows you to:

Verify incoming emails using DMARC.

Define policies to override (accept, quarantine, or reject) domain owners’ 
policies.

Send DMARC aggregate feedback reports to domain owners that helps to 
strengthen their authentication deployments.

Send delivery error reports to the domain owners if the DMARC aggregate 
report size exceeds 10 MB or the size specified in the RUA tag of DMARC 
record.

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.

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 

.