Cisco Cisco Email Security Appliance C160
9
Release Notes for Cisco AsyncOS 8.5 for Email
Documentation Updates
IronPort Spam Quarantine - Enabling the IronPort Spam Quarantine on-box for a C-Series or X-Series
appliance causes a minimal reduction in system throughput for nominally loaded appliances. For
appliances that are running near or at peak throughput, the additional load from an active quarantine may
cause a throughput reduction of 10-20%. If your system is at or near capacity, and you desire to use the
IronPort Spam Quarantine, consider migrating to a larger C-Series appliance or an M-Series appliance.
appliance causes a minimal reduction in system throughput for nominally loaded appliances. For
appliances that are running near or at peak throughput, the additional load from an active quarantine may
cause a throughput reduction of 10-20%. If your system is at or near capacity, and you desire to use the
IronPort Spam Quarantine, consider migrating to a larger C-Series appliance or an M-Series appliance.
If you change your anti-spam policy from dropping spam to quarantining it (either on-box or off-box),
then your system load will increase due to the need to scan additional spam messages for virus and
content security. For assistance in properly sizing your installation please contact your authorized
IronPort support provider.
then your system load will increase due to the need to scan additional spam messages for virus and
content security. For assistance in properly sizing your installation please contact your authorized
IronPort support provider.
Documentation Updates
Opening Required Firewall Ports for URL Filtering Features
The following information supplements the information in the Firewall topic in the online help and
appears in the Firewall appendix in the User Guide PDF.
appears in the Firewall appendix in the User Guide PDF.
The hostname for the web security service is available via the command-line interface. Run the
websecurityadvancedconfig
command and accept all defaults. Look for the "Web security service"
hostname.
Certificates for URL Filtering Features
AsyncOS is designed to automatically deploy and update the certificates needed for communications
with cloud services used for URL filtering features. However, if for any reason the system is unable to
update these certificates, you will receive an alert that requires action from you.
with cloud services used for URL filtering features. However, if for any reason the system is unable to
update these certificates, you will receive an alert that requires action from you.
To ensure that you receive these alerts (System type, Warning severity), see information in the online
help or user guide about adding alert recipients.
help or user guide about adding alert recipients.
If you receive an alert about an invalid certificate, contact Cisco TAC, which can provide the required
replacement certificate. Instructions for installing the certificate are in the URL Filtering chapter in the
online help or user guide.
replacement certificate. Instructions for installing the certificate are in the URL Filtering chapter in the
online help or user guide.
For details about the connection between the appliance and the cloud URL reputation and category
services, see the URL Filtering chapter of the user guide or online help.
services, see the URL Filtering chapter of the user guide or online help.
Resolved Issues
Note
To view a complete list of resolved issues in this release, see