To add the email address whitelisting restriction to your survey or quiz, do the following.
First, hover over the title of your survey or quiz and click on Design Survey:
Check the Email Restriction option. You will then see a Select Users button:
Click on the Select Users button, and you will see the email address whitelisting dialog:
If you allow any email address, a participant must enter any valid email address to get access to the survey or quiz. The response is registered when the participant clicks on a confirmation link.
If you choose an email group, only email addresses from this group will be permitted access to your survey or quiz. Also responses from the email addresses in a email group will only be registered when the participant clicks on a confirmation link.
If you choose to enter individual email addresses, you can use wildcards to allow a set of email addresses. For example, if you entered
*@polldaddy.com, all valid email addresses ending with @polldaddy.com will be permitted access to the survey, like
Once you choose what email addresses you want whitelisted, select the Save Selections button.
Finally, select the Save Settings button on the survey/quiz editor page to save all your survey/quiz settings.
Now when a participant opens this survey they will be asked to enter an email address:
When the participant completes the survey/quiz they will see a message like the following.
The user will be then sent an email with a confirmation link.
When the participant clicks on this link, they confirm ownership of the email address and the survey response is registered. A browser window is opened with the following: