Single SMTP multihomed server behind Firewall
Configure SPAM Filter to listen on a different IP than your SMTP server. This can be done by assigning additional IP address to the server.Reconfigure the firewall so that it routes the external IP address to the IP assigned to SPAM Filter.The SPAM Filter gateway will now be receiving all internet email and will then forward legitimate emails to your SMTP server.
Configure SPAM Filter to listen on a different IP than your SMTP server. This can be done by assigning additional IP address to the server.Reconfigure the firewall so that it routes the external IP address to the IP assigned to SPAM Filter.The SPAM Filter gateway will now be receiving all internet email and will then forward legitimate emails to your SMTP server.
