Cisco Cisco Email Security Appliance X1070 릴리즈 노트
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Release Notes for Cisco IronPort AsyncOS 7.5.1 for Email
OL-25139-02
Upgrade Paths
DomainKeys - DomainKeys signing outgoing email can cause a decrease in the
message throughput capacity. Using smaller signing keys (512 byte or 768 byte)
can mitigate this.
message throughput capacity. Using smaller signing keys (512 byte or 768 byte)
can mitigate this.
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.
Scanning Engine (CASE) to 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.
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.
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.
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.
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.
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.
Upgrade Paths
You can upgrade to release 7.5.1-102 from the following versions:
•
7.1.3-010
•
7.1.4-018
•
7.1.5-017
•
7.1.5-025
•
7.1.5-027
•
7.1.5-101
•
7.5.0-612