Wix Forms: Enabling Double Opt-In for Subscribers
Make sure your emails reach the right contacts by enabling double opt-in on your forms. Double opt-in means that any visitor who has subscribed to your list also needs to take the extra step of verifying their email. This confirms their subscription status.Some businesses prefer double opt-in to make sure the emails in their subscriber list are active and correct. It's also best practice to make sure you have explicit consent from your subscribers.In this article, learn more about:
Single opt-in vs. double opt-in Enabling double opt-in on your site forms Frequently asked questions (FAQs) Single opt-in vs. double opt-inClick an opt-in type below to learn about the different options and how they look.Single opt-inWhen visitors submit a Subscribe form, or select a subscriber opt-in checkbox on other forms, it means they're giving consent to receive emails and communication from you. This confirmation is called single opt-in, as visitors performed one action (filling out the form or selecting the checkbox) to confirm their consent. 
Double opt-inDouble opt-in means that after visitors perform the first opt-in action, they will also be required to verify their email address before they can become subscribers. With double opt-in enabled, visitors are still added to your contact list once they submit the form, but their subscriber status says Subscription Pending until they've verified their email.

To become a subscriber, all your visitor needs to do is click Confirm Subscription in the email. This removes the Subscription Pending label from your contact and adds them to your mailing list. 
Enabling double opt-in on your site formsYou can enable the double opt-in option on any site form. Head over to your form settings in the editor to get started. Notes:
If the toggle is grayed out, it means you haven't yet added a subscriber opt-in checkbox. This article will help you understand the differences between old and new Wix Forms. New FormsOld Forms
Select your form in the editor.  Click Edit Form.  Select the Subscribe field.  Click Settings.  Click the Enable double opt-in toggle:
    
Enabled: Anyone who submits the form or selects the subscriber checkbox receives an email to verify their subscription status. Once they have verified they become subscribers in your contact list. Disabled: Anyone who submits the form or selects the subscriber checkbox is automatically a subscriber in your contact list. They do not have to confirm their status.  
Select your form in the editor. Click Form Settings. Click the Settings tab. Click Subscriber Double Opt-In. Click the Enable double opt-in toggle. 
    
Enabled: Anyone who submits the form or selects the subscriber checkbox receives an email to verify their subscription status. Once they have verified they become subscribers in your contact list. Disabled: Anyone who submits the form or selects the subscriber checkbox is automatically a subscriber in your contact list. They do not have to confirm their status.  FAQsClick a question below to learn more.  I have multiple email fields on my form, which email address receives the confirmation email? If a subscriber enters different email addresses in those fields, all addresses get the confirmation email. Each email address would have to confirm their subscriber status individually.Do subscriber emails need to be verified within a specific timeframe?No, the subscriber can verify their email address whenever they want.