Cisco Cisco Email Security Appliance C160 用户指南
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Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
OL-22158-02
Chapter 17 The IronPort M-Series Security Management Appliance
Figure 17-1
Typical Network Configuration Incorporating the IronPort M-Series Appliance
Large corporate data centers can share one IronPort M-Series appliance acting as
an external IronPort Spam quarantine for one or more IronPort C- or X-Series
appliances. Further, remote offices can be set up to maintain their own local
IronPort appliance quarantines for local use (using the local IronPort Spam
quarantine on C- or X-Series appliances).
an external IronPort Spam quarantine for one or more IronPort C- or X-Series
appliances. Further, remote offices can be set up to maintain their own local
IronPort appliance quarantines for local use (using the local IronPort Spam
quarantine on C- or X-Series appliances).
shows a typical network configuration incorporating the IronPort
M-Series appliance and multiple DMZs. Incoming mail from the Internet is
received by the IronPort appliances in the outer DMZ. Clean mail is sent along to
the MTA (groupware) in the inner DMZ and eventually to the end users within the
corporate network.
received by the IronPort appliances in the outer DMZ. Clean mail is sent along to
the MTA (groupware) in the inner DMZ and eventually to the end users within the
corporate network.
Spam and suspected spam (depending on your mail flow policy settings) is sent
to the IronPort M-Series appliance’s Spam quarantine. End users may then access
the quarantine and elect to delete spam and release messages they would like to
have delivered to themselves. Messages remaining in the IronPort Spam
quarantine are automatically deleted after a configurable amount of time (see the
“Quarantines” chapter in the Cisco IronPort AsyncOS for Email Daily
Management Guide).
to the IronPort M-Series appliance’s Spam quarantine. End users may then access
the quarantine and elect to delete spam and release messages they would like to
have delivered to themselves. Messages remaining in the IronPort Spam
quarantine are automatically deleted after a configurable amount of time (see the
“Quarantines” chapter in the Cisco IronPort AsyncOS for Email Daily
Management Guide).
Mail Flow and the IronPort M-Series Appliance
Mail is sent to the IronPort M-Series appliance from other IronPort (C- and
X-Series) appliances. An IronPort appliance that is configured to send mail to an
IronPort M-Series appliance will automatically expect to receive mail released
from the M-Series appliance and will not re-process those messages when they are
X-Series) appliances. An IronPort appliance that is configured to send mail to an
IronPort M-Series appliance will automatically expect to receive mail released
from the M-Series appliance and will not re-process those messages when they are
Internal Users
Outer DMZ
Inner DMZ
C-Series Appliance
Groupware
C-Series Appliance
C-Series Appliance
M-Series Appliance
Corporate
Network