You can check all emails that your website visitors entered in "Colleting email" pop-ups by following these steps:
Log in to your Picreel account.
Click on the Leads category on the left side of your screen. There you can see emails entered via pop-ups.
Click the Export to CVS button to export emails in CVS format. Click the Export to Apps button to send your leads to Mailchimp, AWeber, iContact and other email services.