IronPort - CLI reference guide

listenerconfig
Description
490
smtpauthconfig
Cisco IronPort AsyncOS 7.6 CLI Reference Guide
Chapter
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.
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.
Table 3-165 listenerconfig Commands
Name
IP Interface
Mail protocol
IP Port
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.
Listeners are assigned to IP interfaces. All IP interfaces must be
configured using the systemstartup command or the
interfaceconfig command before you create and assign a listener
to it.
The mail protocol is used for email receiving: either ESMTP or
QMQP
The specific IP
port used for
connections to the
listener. by default
SMTP uses port
25 and QMQP
uses port 628.