Cisco Cisco Email Security Appliance C160
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Release Notes for Cisco AsyncOS 8.0.1 for Email
Cisco Email Security Virtual Appliance Notes
SBNP - SenderBase Network Participation now uses the Context Adaptive Scanning Engine (CASE) to
collect data to power IronPort Information Services. In some configurations customers may experience
a moderate performance decline.
collect data to power IronPort Information Services. In some configurations customers may experience
a moderate performance decline.
Outbreak Filters - Outbreak Filters uses the Context Adaptive Scanning Engine to determine the threat
level of a message and scores messages based on a combination of Adaptive Rules and Outbreak Rules.
In some configurations, you may experience a moderate performance decline.
level of a message and scores messages based on a combination of Adaptive Rules and Outbreak Rules.
In some configurations, you may experience a moderate performance decline.
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.
Cisco Email Security Virtual Appliance Notes
Cisco Email Security Virtual Appliance Installation Instructions
Instructions for installing the Cisco Email Security virtual appliance are available in the Cisco Content
Security Virtual Appliance Installation Guide at
Security Virtual Appliance Installation Guide at
.
Note
It is extremely important to configure time and synchronization settings on your virtual machine in order
to prevent random failures on your Cisco Web Security Virtual Appliance. Specific instructions are in
the “Important! Preventing Random Failures” section of the Install Guide and must be followed
precisely.
to prevent random failures on your Cisco Web Security Virtual Appliance. Specific instructions are in
the “Important! Preventing Random Failures” section of the Install Guide and must be followed
precisely.
Configuration Files
Email Security virtual appliances running AsyncOS for Email 8.0.1 do not directly support backward
compatibility with configuration files from previous versions of AsyncOS for Email, such as 7.6.2 or
7.5.2.
compatibility with configuration files from previous versions of AsyncOS for Email, such as 7.6.2 or
7.5.2.
However, a Configuration Migration Tool is available to convert a configuration file from select versions
of AsyncOS into a new file that can be uploaded to a virtual appliance.
of AsyncOS into a new file that can be uploaded to a virtual appliance.
For details, see the Release Notes for the Configuration Migration Tool for Cisco Content Security
Virtual Appliances at
Virtual Appliances at