There was a problem in the account creation at h-node.com since I have set a wrong SMTP server name in one configuration file during the last update process (no mail couldn't be sent).
If some of you had tried to create an account at h-node.com then the system should have given the following message: "Address in mailbox given [] does not comply with RFC 2822, 3.6.2." The problem is now solved. I'm really sorry for the inconvenience. You can now create the account at h-node.com Thanks to Luis A. Guzmán García that has brought the problem to my attention. Antonio
