"Furmanek, Greg" wrote:
> 
> I vaguely remember having the same problem.
> I think the mail server has to identify your
> machine so you should see some connection hits
> on your firewall if you log it.  You may want to
> open the ports to your mail server only.
> I can't check which ports I had to open but
> when I get home I can look at my firewall setup.
> 
> -> -----Original Message-----
> -> From: David Demland [mailto:ddemland@cadtel.com]
> -> Sent: Monday, July 03, 2000 8:34 AM
> -> To: plug-discuss@lists.PLUG.phoenix.az.us
> -> Subject: Re: E-mail and Cox
> ->
> ->
> -> Since I got the firewall up using PMFirewall. Is it possible that the
> -> firewall could be holding something back. When I check my
> -> box from the
> -> outside there is nothing going through it. This is good
> -> because no one can
> -> get it, but is it possible that I need something opened to
> -> the outside world
> -> for this? I have also noticed that some web pages seem to
> -> have problems
> -> being displayed on any of the internal computers. This would
> -> lead me to
> -> think I might need to open some things up. If I need to open
> -> some things up,
> -> what would they be?
> ->
> -> Thank You,
> ->
> -> David Demland
> -> Qa / Testing Manager
> -> CADTEL Systems, Inc.
> -> 11201 N. Tatum Ste. 200
> -> Phoenix, AZ 85028
> -> (602) 953-4888
> -> FAX: (602) 953-4833
> -> ddemland@cadtel.com
> ->
> -> -----Original Message-----
> -> From: Mike Sheldon <msheldon@desertraven.com>
> -> To: plug-discuss@lists.PLUG.phoenix.az.us
> -> <plug-discuss@lists.PLUG.phoenix.az.us>
> -> Date: Sunday, July 02, 2000 11:48 PM
> -> Subject: RE: E-mail and Cox
> ->
> ->
> -> >If you're getting a host not found error, the problem is
> -> either you have
> -> not
> -> >provided a valid server name, or your DNS is not properly
> -> configured.
> -> >
> -> >Michael J. Sheldon
> -> >Internet Applications Developer
> -> >Phone: 480.699.1084
> -> >http://www.desertraven.com/
> -> >PGP Key Available on Request
> -> >
> -> >-----Original Message-----
> -> >From: plug-discuss-admin@lists.PLUG.phoenix.az.us
> -> >[mailto:plug-discuss-admin@lists.PLUG.phoenix.az.us]On
> -> Behalf Of David
> -> >Demland
> -> >Sent: Sunday, July 02, 2000 19:44
> -> >To: PLUG Discuss
> -> >Subject: E-mail and Cox
> -> >
> -> >
> -> >Does any know now to get "mail-client" to talk to Cox
> -> e-mail. I have set
> -> >everything up like on the PC and I keep getting an error
> -> message that a
> -> host
> -> >can not be found. Any ideas?
> -> >
> -> >David
> -> >
> -> >
> -> >_______________________________________________
> -> >Plug-discuss mailing list  -  Plug-discuss@lists.PLUG.phoenix.az.us
> -> >http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
> -> >
> ->
> ->
> -> _______________________________________________
> -> Plug-discuss mailing list  -  Plug-discuss@lists.PLUG.phoenix.az.us
> -> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss
> ->
> 
> _______________________________________________
> Plug-discuss mailing list  -  Plug-discuss@lists.PLUG.phoenix.az.us
> http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss

Try:

ipchains -A ext-in -j ACCEPT -p tcp -s $MAILIP -d $EXTIP smtp
ipchains -A ext-out -j ACCEPT -p tcp -s $EXTIP 25 -d $MAILIP

Try to open the smtp 25 for your mail server only.
-- 
The Wolf

"The questions is not if we are paranoid, 
the question is if we are paranoid enough."