$header .= "MIME-Version: 1.0\n";
$header .= "Content-type: text/html; charset=utf-8\n";
$header .= "{$extra}\n";
Remove this . after header or none of e-mails will go away !
After removing it it all works fine !
Also mail is sent from root@mail.domain.com instead of kloxo@domain.com...
