I have a different setup from the usual Perfect server. What i've done was a mix from the Installing a multple ISPConfig server on Debian Lenny Howto and Debian Squeeze Howto 1 Main Web server (where is ISPConfig panel) 1 Mail server - Postfix, courier, roundcube with lighttpd 1 Secondary Web server 1 MySQL Server - Running phpmyadmin with lighttpd I can send emails to any email but I can only receive from internal email addresses. Why does is this happening some emails returned couple days later.
Any errors in your mail log? What's the output of Code: netstat -tap ? Did you check if your MX record points to the correct server? You can check that with Code: dig mx yourdomain.com
