Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
1-2
Cisco AsyncOS 9.1 for Email User Guide
Chapter 1 Getting Started with the Cisco Email Security Appliance
What’s New in This Release
What’s New in Cisco AsyncOS 9.1 for Email
Feature
Description
New Features
File Analysis
quarantine
improvements
quarantine
improvements
Messages can now be automatically released or deleted from the centralized
File Analysis quarantine on the Content Security Management Appliance
based on the analysis verdict.
File Analysis quarantine on the Content Security Management Appliance
based on the analysis verdict.
Updater enhancements
Email Security appliance includes the following updater enhancements:
•
Email security appliance can check the validity of the Cisco updater
server certificate every time the appliance communicates with the updater
server.
server certificate every time the appliance communicates with the updater
server.
See
•
If you are using a non-transparent proxy server, you can add the CA
certificate used to sign the proxy certificate to the appliance. By doing so,
the appliance trusts the proxy server communication.
certificate used to sign the proxy certificate to the appliance. By doing so,
the appliance trusts the proxy server communication.
See
Disabling SSLv3
For enhanced security, you can disable SSLv3 for the following services:
•
Updater
•
URL Filtering
•
End User Quarantine
•
LDAP
See
Changed Behavior
Accept or reject
messages based on the
size of the subject
messages based on the
size of the subject
While configuring the global settings for listeners, you can now specify
whether to accept or reject messages based on the size of the subject. If you
specify this parameter, messages having subject size within the specified limit
will be accepted and any other messages will be rejected. For instructions, see
whether to accept or reject messages based on the size of the subject. If you
specify this parameter, messages having subject size within the specified limit
will be accepted and any other messages will be rejected. For instructions, see
.