Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

You also specify the default maximum number of concurrent connections the appliance makes for 
outbound message delivery. (The system-wide default is 10,000 connections to separate domains.) The 
limit is monitored in conjunction with the per-listener maximum outbound message delivery 
concurrency (the default per listener is 600 connections for private listeners and 1000 connections for 
public listeners). Setting the value lower than the default prevents the gateway from dominating weaker 
networks. For example, certain firewalls do not support large numbers of connections, and this could 
induce Denial of Service (DoS) warnings in these environments. 

In the following example, the 

deliveryconfig

 command is used to set the default interface to “Auto” 

with “Possible Delivery” enabled. The system-wide maximum outbound message delivery is set to 9000 
connections. 

mail3.example.com> deliveryconfig

Choose the operation you want to perform:

- SETUP - Configure mail delivery.

[]> setup

Choose the default interface to deliver mail.

1. Auto

2. PublicNet2 (192.168.3.1/24: mail4.example.com)

3. Management (192.168.42.42/24: mail3.example.com)

4. PrivateNet (192.168.1.1/24: mail3.example.com)

5. PublicNet (192.168.2.1/24: mail3.example.com)

[1]> 1

Enable "Possible Delivery" (recommended)?  [Y]> y

Please enter the default system wide maximum outbound message delivery

concurrency

[10000]> 9000