I don't know the exact error as I don't have access to the server at the moment but the problem is :
At the end of the installation a prompt asks you to enter a fully qualified domain name for the server. I already tried everything, the DNS server is working normally, I can ping it and the 'nameserver' is added to the configuration; but I always get the error the MX record is not found
What can cause this?
Thanks in advance!
(I'll update the topic with the exact error)