Double opt-in requires form submitters to confirm their email address before being added to your CRM. This improves lead quality and reduces spam.
After submitting the form, the reader receives a confirmation email. They must click the link in that email before appearing in your CRM.
Open the Form Settings.
Scroll down and enable the double opt-in toggle.
Select the email template to send to form submitters from the dropdown.
Specify the email subject line.
Click Save.
Note: Select a template that includes the confirmation placeholder link — otherwise double opt-in will not work. See "Add a placeholder to a custom form email template" for instructions on inserting the placeholder link.