Email to quiz taker not working

Hi. Email to the quiz taker is not working. Tried all settings, Email does not get send.
What might be the issue ?

Im not understanding the process here.
Email to quiz taker not working. I guess thats because the user is not registered ?

Email or Download Button on the end of quiz dont show, doesnt matter the settings ?

I want the user to be able to receive the result or certifcate of something at the end via Email with a PDF attachement.
Can that be done ?

Thanks

Ok ... problem kind of solved.
Even with tutorial its not really easy to understand.
One question will follow in a few.

Thanks

Hello,
You do not get any result/certificate if there is any question which can not be evaluated automatically e.g. Textarea questions if carry some marks can only be evaluated by the Quiz author or the website administrator, hence it won't display any certificate button or the result.