From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Matthew Hellman" Subject: Re: iptables Date: Mon, 10 Jun 2002 21:23:06 -0500 Sender: netfilter-admin@lists.samba.org Message-ID: <004b01c210ee$ec7b4e40$020aa8c0@matttm9svd8lrh> References: Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Errors-To: netfilter-admin@lists.samba.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii" To: Paulo Andre , "Netfilter (E-mail)" try telnetting from the exchange server to a mail server on the Internet. ----- Original Message ----- From: "Paulo Andre" To: "Netfilter (E-mail)" Sent: Monday, June 10, 2002 9:06 AM Subject: iptables > I have a Exchange server that needs to send mail out, the firewall > (iptables) is set up as follows: > > iptables -A FORWARD -s (mail srv) -p tcp --dport 25 -j ACCEPT > > The mail server comes back with a "Host unreachable" error, and nslookup and > traceroute takes me to the destination fine. Anyone have any ideas...??? > > > >