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...mail server, and a client -- all boxes are running OSX 10.2.8 -- Gateway/Firewall is the kernel's BSD ipfw(8) -- gateway box has two ethernet interfaces inif="en1" # internal gateway interface name exif="en2" # external gateway interface name innr="10.0.0.0/24" # LOCAL network range inip="10.0.0.1" # gateway's internal (NAT) IP address exip="any" gateway_server="10.0.0.1" # the gateway/firewall box, 2 interfaces smtp_server="10.0.0.2" # SMTP server beh...

...ow tcp from any to ${smtp_server} 25 established ipfw add 7002 allow log tcp from ${smtp_server} 25 to any setup ipfw add 7003 allow tcp from ${smtp_server} 25 to any established right? >># allow clients to communicate with external smtp servers >> ipfw add 7002 allow log tcp from ${innr} 1024-65535 to ${exip} 25 >> ipfw add 7003 allow log tcp from ${exip} 25 to ${innr} 1024-65535 > > Why? Wouldn't you want them to send their mail to your internal mail > server, which would then send it out? usually, yes BUT, sometimes i want to be able to use a local LAN ma...