How does one force sendmail to use only a single interface

[Ryan Pugatch]

Jerry Feldman wrote:
> We added a new IP address to the BLU server in anticipation of migrating
> to a new range of IP addresses, but that address is causing some ISPs to
> reject us. I don't want to disable the interface, but is there a way we
> can force sendmail to bind itself only to eth0, not eth1.
> 
> 
I think you need to set it like this doc says: 
http://www.brandonhutchinson.com/Running_a_second_sendmail_instance.html

Ryan