Hello from Greece! Going through the "Virtual Users And Domains With Postfix, Courier And MySQL (Ubuntu 6.10 Edgy Eft)" article I have come across a few issues and I need you to help me troubleshoot them. I can send mail from any domain user to all domain users within the same domain, but cannot send outside their domain. I get the "relay access denied" error. I have googled this one a bit, but could not find an answer. How can I troubleshoot this issue? What info should I provide to help you help me?