I just did a clean install of server 7.0pre4 and had it working great with about 5 users on it and a default webpage, I had 2 groups and the email went to the people in the groups as well as their personal accounts. After adding an additional 20 users and 18 groups the server stopped receiving email and I could not access the web either. At this point I can’t even ping the external address, I have SBC DSL account with static IP and no router or firewall. Also note that the proxy server works fine so that means that the external IP is working. I can access the webpage and webmail page using the internal mailserver name or IP….seems like some kind of built-in firewall setting, I’ll post this in a bug report also. Thanx, all help is greatly appreciated.