Cisco Cisco Email Security Appliance C390 사용자 가이드

If messages are present in the local IronPort Spam quarantine when it is disabled, 
you can opt to delete all of the messages via the “Delete All” link on the 
Quarantines page:

The Delete All link is not available on the IronPort M-Series appliance. To remove 
all messages from the IronPort Spam quarantine on an M-Series appliance, stop 
sending spam to it and allow the quarantined messages to expire.

If the IronPort Spam quarantine is disabled, any mail polices set to quarantine 
spam or suspected spam will instead be set to deliver the message.

If you are currently using the local IronPort Spam Quarantine on a local IronPort 
C- or X-Series appliance but would like to migrate to an external IronPort Spam 
Quarantine hosted on an IronPort M-series appliance — while retaining access to 
the messages in the local quarantine — consider the following possible strategies:

Configuring Anti-Spam Settings — configure the anti-spam settings on your 
mail policy specifying the M-Series appliance as the alternate host. This 
action sends new spam to the external quarantine while still allowing access 
to the local quarantine.