I have the problem that if clickbank is at a S2member per order placed, no mail to the customer is where the Registration link is in there. The order works only just sent the mail is not. The error must be corrected.
I am a professional web developer. I understood the problem. There is a problem in the SMTP. you need to configure it in the code. I think it is not easy for you if you are not a developer. you can avail my services any time