Cisco Cisco Email Security Appliance C670

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Release Notes for Cisco AsyncOS 8.5.6 for Email
 
  What’s New
Custom DLP 
Policy-Related 
Changes
While creating custom DLP policies, you cannot select any of the following 
predefined RSA content matching classifiers that require additional 
customizations: 
Group Insurance Numbers
Health Plan Beneficiary Numbers
Mergers and Acquisitions Codenames
Patient Identification Numbers
Custom Accounts
US Personal Identification Information
Medical Record Numbers
Confidential Documents
Student Identification Numbers
US Bank Account Numbers
Note
If you have an existing custom DLP policy with these classifiers, they 
are removed from the policy after the upgrade to AsyncOS 8.5.6 for 
Email.
DLP Policy-Related 
Changes
After upgrading to Cisco AsyncOS 8.5.6 for Email, DLP policies without any 
content blades or any other detection logic are disabled, and are not used for 
DLP scanning.
Default IP Interface
AsyncOS selects the default IP interface based on the order in which the IP 
interfaces appear under Network > IP Interfaces page or in the 
ifconfig
 
CLI command. The first IP interface in the list that resides on the subnet in 
question is used.
Prior to this release, if there are multiple IP addresses configured within the 
same subnet as the default gateway, the IP address with the lowest 
alphanumeric value is used. 
In this release, if there are multiple IP addresses configured within the same 
subnet as the default gateway, the IP address with the lowest number is used. 
New Alert for Loss of 
Connectivity to Cisco 
Web Security Services
A new warning alert will be sent if the connectivity to Cisco Web Security 
Services is lost.
Default URL Lookup 
Timeout Value
For faster recovery from an extended connectivity loss to Cisco Web Security 
Services, the default value of URL lookup timeout is now five seconds.
Note
If you are upgrading from Cisco AsyncOS 8.5.X for Email, the default 
value will remain as 15 seconds. It is recommended that you set this 
value to five seconds using the 
websecurityadvancedconfig
 
command in CLI. 
URL Filtering Client 
Service Process 
Recycling
The URL Filtering Client Service process is now forcefully recycled if the 
size of process grows beyond the preconfigured limit.
Feature
Description