Hi, Ive got a mail server which has been able to connect and exchange mail with one of our clients mail server for quite a while but now out of the blue it cant seem to connect to any service on there server, even though I can ping it. What makes it even stranger is that I use this mailserver to masquerade to all my local workstations. Now from my workstation I am able to connect to the desired mailserver "telnet mailserver 25", where I cant do this from the server... Below is what my iptables chains look like? does anybody have any Idea what the problem might be? Thanks, Ilo Lorusso. Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- 10.0.0.0/28 anywhere
