Cisco Cisco Email Security Appliance C370D Notas de publicación
3
Release Notes for Cisco IronPort AsyncOS 7.5.1 for Email
OL-25139-02
What’s New in Cisco IronPort AsyncOS 7.5.1 for Email
80072
Fixed: Feature Key Checks May Cause Slowdown
When processing a message, the Email Security appliance performs feature key
checks when running certain filter rules. The performance of these feature key checks
slowed down in AsyncOS 7.5.0 and caused a slowdown in processing messages
through the email pipeline. This issue has been resolved.
checks when running certain filter rules. The performance of these feature key checks
slowed down in AsyncOS 7.5.0 and caused a slowdown in processing messages
through the email pipeline. This issue has been resolved.
80678
Fixed: Infrequent Race Condition Could Lock Up Email Security Appliance
When this issue occurred, the Email Security appliance stopped communicating with
associated Security Management appliances, and stopped responding to input via GUI
and CLI.
associated Security Management appliances, and stopped responding to input via GUI
and CLI.
79524
Fixed: Excessive Memory Usage from Footer Stamping and Attachment
Stripping
Stripping
Fixed an issue where adding a footer to an outgoing message or stripping an outgoing
message’s attachment would result in excessive memory usage on the Email Security
appliance.
message’s attachment would result in excessive memory usage on the Email Security
appliance.
74547
Fixed: Scanning Engine Restarts If It Exceeds Memory Limit
The content scanning engine in AsyncOS 7.5.0 for Email improved performance from
previous versions but it would run out of memory when scanning certain types of
vCard attachments. When it reached its memory limit, the engine restarted and the
message and its attachment continued through the work queue. This issue has been
resolved.
previous versions but it would run out of memory when scanning certain types of
vCard attachments. When it reached its memory limit, the engine restarted and the
message and its attachment continued through the work queue. This issue has been
resolved.
76228
Fixed: Large Messages Put Appliance into “Resource Conservation” Mode if
Destination is Down
Destination is Down
Previously, if the Email Security appliance tried delivering large messages to a
destination that could not be reached, the message queue would fill up messages and
stop accepting new messages. The queue would then force the appliance into
“resource conservation” mode because the queue would not release the memory it was
using, which prevented the appliance from running tasks like garbage collection. This
issue has been resolved.
destination that could not be reached, the message queue would fill up messages and
stop accepting new messages. The queue would then force the appliance into
“resource conservation” mode because the queue would not release the memory it was
using, which prevented the appliance from running tasks like garbage collection. This
issue has been resolved.
79854
Fixed: Unable to Reply with Cisco Registered Envelope Service Encryption
Fixed an issue where a recipient was unable to reply to a message that had been
encrypted using the Cisco Registered Envelope Service.
encrypted using the Cisco Registered Envelope Service.
Table 1
Resolved Issues in Version 7.5.1 (continued)
Defect ID
Description