Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

Using Virtual Gateway addresses, a configuration like the one shown in 

 is also possible. 

Note that four separate IP interfaces can be used to deliver mail, where only one public listener is 
configured to accept messages from the Internet. 

The 

altsrchost

 command provides the simplest and most straightforward method to segment each 

appliance into multiple IP interfaces (Virtual Gateway addresses) from which to deliver email. However, 
users requiring more power and flexibility in mapping messages to particular Virtual Gateways should 
investigate the use of message filters. See 

 

for more information. 

The 

altsrchost

 command allows you to control which IP interface or interface group to use during 

email delivery based on one of the following:

the sender’s IP address

the Envelope Sender address