Cisco Cisco Email Security Appliance C690 User Guide
Chapter 9 Testing and Troubleshooting
Using the Listener to Test the Appliance
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Cisco IronPort AsyncOS 7.5 for Email Daily Management Guide
OL-25138-01
Figure 9-4
Black Hole Listener for an Enterprise Gateway
In the following example, the
listenerconfig
command is used to create a black
hole queueing listener named
BlackHole_1
on the Management interface. This
Host Access Table (HAT) for the listener is then edited to accept connections from
the following hosts:
the following hosts:
•
yoursystem.example.com
•
10.1.2.29
•
badmail.tst
•
.tst
Note
The final entry,
.tst
, configures the listener so that any host in the
.tst
domain
can send email to the listener named
BlackHole_1
.
Example
Groupware Server
(Exchange™, Domino™,
IronPort Email Security Appliance
Groupware Client
Groupwise™)
A
B
C
SMTP
Firewall
mail3.example.com> listenerconfig
Currently configured listeners: