Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
39-13
Cisco AsyncOS 8.5.5 for Email Security User Guide
Chapter 39 Testing and Troubleshooting
Using the Listener to Test the Appliance
Figure 39-4
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:
•
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:
1. InboundMail (on PublicNet, 192.168.2.1) SMTP Port 25 Public
2. OutboundMail (on PrivateNet, 192.168.1.1) SMTP Port 25 Private
Choose the operation you want to perform:
- NEW - Create a new listener.
- EDIT - Modify a listener.
- DELETE - Remove a listener.