I would guess that there is a firewall blocking outgoing connections
to port 25. To test, try:

telnet mx.texas.net 25

You should get something like this:

Trying 207.207.0.213...
Connected to mx.texas.net.
Escape character is '^]'.
220 mw5.texas.net ESMTP Texas.Net Mailer 8.11.6; Thu, 20 Dec 2001 11:22:13 -0600 (CST)

At this point, just type QUIT. If you get connection refused or
anything else, something in your network needs to be re-configured.

HTH,
  Jeffrey

Quoting John Blumel <jblumelcoffeeservice.com>:
> After some testing on our private networks where Postfix seemed to be
> working ok, I hooked it up to the cold hard world of the internet and
> started trying to send some test emails through both internal accounts
> and external accounts with various ISPs. Inbound mail seems to work ok
> but, whenever I send mail to one of the external accounts, I get a
> 'Connection refused' trying to connect to the domains mail servers.
>
> I've added to domains I'm trying to send to to the debug_peer_list but
> there isn't much useful info -- just the 'refused' message in the log.
> Can anyone suggest where I should start looking to determine why I'm
> refused everywhere? (I've checked and I don't seem to be on any
> blackhole lists.) I'd include some useful information for everyone to
> look over but I'm not sure what that would be at this point.
>
>
> John Blumel
>
> -
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> (not subject): unsubscribe postfix-users

-- 
I don't do Windows and I don't come to work before nine.
		 -- Johnny Paycheck
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