Re: How to block sending mail from local network.

[David Harel <hareldvd@xxxxxxxxxxxxxxxx>]

Thanks,

This works great.

Sven Schuster wrote:

> Hi David, 
>
> On Sat, Feb 07, 2004 at 12:51:33PM +0200, David Harel told us:
>  
>
> > Hi all,
> >
> >
> > I tried a command:
> > $IPTABLES -A OUTPUT -p TCP -i $LAN_IFACE -s $LAN_IP_RANGE --dport smtp 
> > -j DROP
> > but it did nothing.
> >    
>
> This will only stop traffic generated on your gateway. To stop traffic
> going _through_ the gateway you will need to put this rule in the
> FORWARD rule instead of OUTPUT, so replace OUTPUT with FORWARD, you
> might try something like this:
>
> $IPTABLES -A FORWARD -p tcp --dprt 25 -i $LAN_IFACE -o $EXT_IFACE \
> 	-j REJECT --reject-with tcp-reset
>
> HTH
>
> Sven
>
>  
>
> > What can I do to block those messages sending attempts?
> >
> > --
> > Thanks.
> >
> > David Harel,
> >
> >    
>
>  

--
Thanks.

David Harel,

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