Cisco Cisco Email Security Appliance X1070 Referencia técnica
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Cisco AsyncOS 8.5.5 CLI Reference Guide
Chapter 3 The Commands: Reference Examples
SMTP Services Configuration
These qualifying criteria are defined in listeners; collectively, they define and enforce your mail flow
policies. Listeners also define how the appliance communicates with the system that is injecting email.
policies. Listeners also define how the appliance communicates with the system that is injecting email.
Usage
Commit: This command requires a ‘commit’.
Cluster Management: This command can be used in all three machine modes (cluster, group, machine).
Batch Command: This command supports a batch format.
Batch Format - General listenerconfig
The batch format of the
listenerconfig
command can be used to add and delete listeners on a particular
interface. The batch format of the listenerconfig command also allows you to configure a listener’s HAT
and RAT.
and RAT.
Table 3-167
listenerconfig
Commands
Name
Unique nickname you supply for the listener, for future reference.
The names you define for listeners are case-sensitive. AsyncOS does
not allow you to create two identical listener names.
The names you define for listeners are case-sensitive. AsyncOS does
not allow you to create two identical listener names.
IP Interface
Listeners are assigned to IP interfaces. All IP interfaces must be
configured using the
configured using the
systemstartup
command or the
interfaceconfig
command before you create and assign a listener
to it.
Mail protocol
The mail protocol is used for email receiving: either ESMTP or
QMQP
QMQP
IP Port
The specific IP
port used for
connections to the
listener. by default
SMTP uses port
25 and QMQP
uses port 628.
port used for
connections to the
listener. by default
SMTP uses port
25 and QMQP
uses port 628.
Listener Type:
Public
Public and private listeners are used for most
configurations. By convention, private listeners
are intended to be used for private (internal)
networks, while public listeners contain default
characteristics for receiving email from the
Internet.
configurations. By convention, private listeners
are intended to be used for private (internal)
networks, while public listeners contain default
characteristics for receiving email from the
Internet.
Private
Blackhole
“Blackhole” listeners can be used for testing or
troubleshooting purposes. When you create a
blackhole listener, you choose whether
messages are written to disk or not before they
are deleted. (See Chapter 9, “Testing and
Troubleshooting” of the AsyncOS Advanced
User Guide for more information.
troubleshooting purposes. When you create a
blackhole listener, you choose whether
messages are written to disk or not before they
are deleted. (See Chapter 9, “Testing and
Troubleshooting” of the AsyncOS Advanced
User Guide for more information.