sendmail only listening on localhost

[Simon Ironside]

Hi all,
 
I have a default sendmail instance on FreeBSD 5.3, the SMTP service only seems to be listening on localhost:
 
netstat -al | grep smtp
tcp4       0      0  localhost.smtp         *.*                    LISTEN

I can connect locally using telnet localhost 25 but I cannot connect using telnet 10.99.0.2 25.
 
I have tried both editing the .mc file (and regenerating) to add:
 
DAEMON_OPTIONS(`Port=smtp, Addr=10.99.0.2, Name=MTA')
 
and editing the .cf file manually to add:
 
O DaemonPortOptions=Port=smtp, Addr=10.99.0.2, Name=MTA
 
Although of course, that line is there already after regenerating from .mc
 
After restarting, I still cannot connect using 10.99.0.2
 
Can someone help?
 
Thanks,
Simon