Cisco Cisco Email Security Appliance C670 技术参考
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Cisco IronPort AsyncOS 7.5 CLI Reference Guide
OL-23407-01
Chapter
•
listenerconfig
Description
The listenerconfig command allows you to create, edit, and delete a listener.
IronPort AsyncOS requires that you specify criteria that messages must meet in
order to be accepted and then relayed to recipient hosts — either internal to your
network or to external recipients on the Internet.
IronPort AsyncOS requires that you specify criteria that messages must meet in
order to be accepted and then relayed to recipient hosts — either internal to your
network or to external recipients on the Internet.
These qualifying criteria are defined in listeners; collectively, they define and
enforce your mail flow policies. Listeners also define how the IronPort appliance
communicates with the system that is injecting email.
enforce your mail flow policies. Listeners also define how the IronPort appliance
communicates with the system that is injecting email.
Table 3-162
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.