> I've heard that postfix is supposed to "work" once it's started.  The
> only thing it does is work from the localhost.  The docs say that the
> default is to trust the subnet but that is false.  From what I've seen
> on various BB's around, I'm not the only one but the answers given
> either didn't exist or were still cryptic.  Postfix site and docs say to
> use !file|name and $mydomain but that doesn't tell me anything.  They
> might as well say to use batteries and glass.

The first thing that strikes to me is the inet_interfaces
variable in main.cf. The default on my RH9 system seems to be like:
inet_interfaces = localhost

Assuming you have set everything else correctly, try changing the above to
inet_interfaces = $myhostname, localhost at least(you can also choose
inet_interfaces = all if you wish) and restart postfix to see if it helps.
Also you can run netstat -antpu and check if postfix is listening on your
other interfaces as well.

I can send you a main.cf sometime tomorrow....

HTH,
--ravi