Use shorewall or something similar to adjust the firewall.
Tom

On Mon, 2003-08-11 at 21:45, Todd Lyons wrote:
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> >This brings up an interesting question.  My ISP blocks all outgoing port
> >25 connections as well as incoming.  Is there anyway to use a local SMTP
> >server in this situation, or won't it be blocked when it forwards the mail
> >on?  My work just implimented the same block, so it would be nice to know
> >if there is a way around it.
> 
> I'm assuming that you meant "block all outgoing port 25 unless it is to
> the ISP mail server."  Just configure Postfix to use the ISP mail server
> as a smart host.  Then postfix will never try to deliver directly to who
> it's addressed, instead it will relay through your ISP.
> 
> Regards...            Todd
> - -- 
> Are there any plans to allow different levels of protection in the
> firewall?  Right now the iptables rules are too strict to function
> properly on a windows network without manually adjusting the rules.
>                                                --Cooker ML Oct 2002
> Linux kernel 2.4.21-0.25mdk   7 users,  load average: 0.00, 0.02, 0.00
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-- 

Best Regards
Thomas Spuhler

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