Hi Falko, This time I tried Debian Sarge 3.1 instructions on my Kanotix RC-11 version. Everything went fine not even a single error. Also I omitted Courier section. After installing ISPConfig and logged in as admin. I selected the Services section and found the following:- Web-Server: Online FTP-Server: Online SMTP-Server: Online POP3-Server: Offline BIND-Server: Online mySQL-Server: Online and my nmap on localhost shows the following, i could not see any 110 port in it. Could you please tell me what might have gone wrong and how can I now get the Pop3 service running, which in the above ISPConfig would change from Offline to Online. Please see my nmap output below:- Code: [email protected][email protected] Please help me to get this one right. Many thanks for your excellent article. Nandhu.