Add EMail when add an User in CMS

[HellBz]

I have a problem with my CMS.

I've done it's that I do when a user logs on encouraging a page
That automatically creates an e-mail account.

Code:

INSERT INTO `mail_users` (`mail_acc`, `mail_pass`, `mail_forward`, `domain_id`, `mail_type`, `sub_id`, `status`, `mail_auto_respond`, `mail_auto_respond_text`, `quota`, `mail_addr`)
VALUES
('username', 'password', '_no_', 1, 'alssub_mail', 16, 'toadd', 0, '', 10485760, 'hellbz2@sub.domain.eu');

In the Control Panel it displays e-mail address is created.
But it shows on every visit.

I'm missing in my PHP script what?

For your information there is a page that eautomatisch creates an e-mail address
and this site is not integrated in the Control Panel ispCP.
A root mysql access I have.