Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
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Cisco AsyncOS 8.0.2 for Email User Guide
Chapter 27 Quarantines
Managing Policy, Virus, and Outbreak Quarantines
If the size limit is reached, the oldest messages, regardless of quarantine, are processed and the
default action is performed for each message, until the size of all quarantines is again less than
the size limit. The policy is First In First Out (FIFO). Messages in multiple quarantines will be
expired based on their latest expiration time.
default action is performed for each message, until the size of all quarantines is again less than
the size limit. The policy is First In First Out (FIFO). Messages in multiple quarantines will be
expired based on their latest expiration time.
(Optional) You can configure individual quarantines to be exempt from release or deletion
because of insufficient disk space. If you configure all quarantines to be exempt and the disk
space reaches capacity, messages in the quarantine will be delivered to make room for new
messages.
because of insufficient disk space. If you configure all quarantines to be exempt and the disk
space reaches capacity, messages in the quarantine will be delivered to make room for new
messages.
You will receive alerts at disk-space milestones. See
–
You delete a quarantine that still holds messages.
When a message is automatically removed from a quarantine, the default action is performed on that
message. See
message. See
.
Effects of Time Adjustments on Retention Time
•
Daylight savings time and appliance time zone changes do not affect the retention period.
•
If you change the retention time of a quarantine, only new messages will have the new expiration
time.
time.
•
If the system clock is changed, messages that should have expired in the past will expire at the next
most appropriate time.
most appropriate time.
•
System clock changes do not apply to messages that are in the process of being expired.
Default Actions for Automatically Processed Quarantined Messages
The default action is performed on messages in a policy, virus, or outbreak quarantine when any situation
described in
described in
, occurs.
There are two primary default actions:
•
Delete—The message is deleted.
•
Release—The message is released for delivery.
Upon release, messages may be re-scanned by anti-virus or anti-spam engines. For more
information, see
information, see
.
In addition, messages released before their expected retention time has passed can have additional
operations performed on them, such as adding an X-Header. For more information, see
operations performed on them, such as adding an X-Header. For more information, see
Checking the Settings of System-Created Quarantines
Before you use quarantines, customize the settings of the default quarantines, including the Unclassified
quarantine.
quarantine.