We're running iptables/Netfilter 1.3.5. We have our mail server nat'ed. Every so often our firewall stops preforming the nat translation from public IP address --> private IP Address. What is the best way to troubleshoot this problem? If you have reference to a simple quide or how to shoot it my way. Thanks in advance! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com