Using Email Validator widget

Hi, 

i made a JOT-form to get new newsletter subscribers. When the users fill in their data jotform sends them a confirmation and asks them for confirmation as we need a double opt-in.

Is there any possibility to see if the users clicked the confirmation button? 

We use Avalanche as a newsletter tool. Is there any possibility to connect jotform with avalanche?

You can use our email validator widget for that, jotform will send a validation code and the user must enter the validation code in the widget to continue or submit the form.

https://widgets.jotform.com/widget/e-mail_validator

Guide: How-to-Add-a-Widget-to-Your-Form