Cisco Cisco Email Security Appliance C680 Notas de publicación
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Release Notes for Cisco AsyncOS 8.5.6 for Email
Documentation Updates
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
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
support provider.
Documentation Updates
Additional Information
The User Guide PDF may be more current than the online help. To obtain the User Guide PDF and other
documentation for this product, click the View PDF button in the online help or visit the URL shown in
documentation for this product, click the View PDF button in the online help or visit the URL shown in
.
Information about other resources, including the knowledge base and Cisco support community, is in the
online help and the User Guide PDF.
online help and the User Guide PDF.
Which Files Can Have their Reputation Evaluated and Be Sent for Analysis?
The criteria for evaluating a file’s reputation and for sending files for analysis may change at any time.
Criteria are available only to registered Cisco customers. See File Criteria for Advanced Malware
Protection Services for Cisco Content Security Products, available from
Criteria are available only to registered Cisco customers. See File Criteria for Advanced Malware
Protection Services for Cisco Content Security Products, available from
http://www.cisco.com/c/en/us/support/security/email-security-appliance/products-user-guide-list.html
In order to access this document, you must have a Cisco customer account with a support contract. To
register, visit https://tools.cisco.com/RPF/register/register.do.
register, visit https://tools.cisco.com/RPF/register/register.do.
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.