There is no way for me to send emails to participants.

When I activate the survey and send the link for a try out, the survey asks for registration (attachment). Your name, surname, email address, and captcha is required to continue. An email is supposedly sent with another link to complete the survey. Here is where the problema starts. No email is sent, so there is no way to complete the survey.

Adittional information: The survey is anonymous, no participants are created, Publication and Access control is attached for further info.