Till U are great...
I did follow the procedures from the link you send me and now I can see my domain dancepartners.ca on my ISPConfig server.
So I did install 2 servers, buy domain from GoDaddy and I'am in bussiness.
Now I just have to figure out what webmail it is the best from the client site and how can I use it.
I did create a resealer, client and site, but I can not login ( how ) on webmail to send and receve emails.
On dancepartners.ca I have a user email@example.com
Please if you can get me a hint apreciate,