Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

Use the Mail Policies > Destination Controls page in the GUI or the 

destconfig

 

command in the CLI to create, edit, and delete Destination Control entries.

You may want to limit how your appliance will deliver email to avoid 
overwhelming remote hosts or your own internal groupware servers with email 
from your appliance. 

For each domain, you can assign a maximum number of connections, outbound 
messages, and recipients that will never be exceeded by the system in a given time 
period. This “good neighbor” table is defined through the Destination Controls 
feature (Mail Policies > Destination Controls or the 

destconfig

 command — 

previously the 

setgoodtable

 command). You can specify the domain name using 

the following syntax: 

domain.com

or

.domain.com

This syntax enables AsyncOS to specify destination controls for sub-domains 
such as sample.server.domain.com without entering each full subdomain address 
individually.

For connections, messages, and recipients, you set whether the limits you define 
are enforced for each Virtual Gateway address, or for the entire system. (Virtual 
Gateway address limits control the number of concurrent connections per IP 
interface. System-wide limits control the total number of connections the Cisco 
IronPort appliance will allow.) 

You also set whether the limits you define are enforced for each MX record of the 
specified domain, or for the entire domain. (Many domains have multiple MX 
records defined for accepting email.) 

The current system default is 500 connections per domain and 50 messages per 
connection.