Hi They do say you're never too old to learn! So on my last birthday (62) I decided to test my brain to see if it was still alive. I decided to learn something about Ubuntu. Using the howtoforge.com guide: "The Perfect Server - Ubuntu 12.10 (Apache2, BIND, Dovecot, ISPConfig 3)", I set up a server on an old PC. To my surprise and delight, it worked first time! It's been running for 10 months now without a problem. The only thing I would like to change is to add Roundcube to take over from squirrelmail. Whilst I have found some guides in this forum which are helpful, none of them specify Ubuntu and the software combination I am using. Being new to LINUX, I am naturally, a little nervous, about tackling this project in case I make a mistake which ruins my server and which I do not know how to undo. So, is there anyone out there who can help?