6
Actually one last thing that might help you pinpoint the problem.
I did receive a correct mail (as webmaster) that harry has registered (although he did not click on the activation link).
I also got a Undelivered Mail Return to Sender message for the mail that was to be sent to Harry.
This was the error :
le="color: #000000"><?php I'm sorry to have to inform you that your message could not be be delivered to one or more recipients. It's attached below. For further assistance, please send mail to <postmaster> If you do so, please include this problem report. You can delete your own text from the attached returned message. The Postfix program <chco@casema.nl'>: bad address syntax: "chco@casema.nl'" <'@node15.cluster.nxs.nl> (expanded from <'>): unknown user: "'"