Double Opt-In

With double opt-in, every person who signs up first receives an email with a confirmation link. They're only added to your contacts once they click it. It's optional, and especially worth knowing about if you email people in countries with strict rules on marketing emails.

How it works

When double opt-in is turned on, signing up through an Email form block doesn't add the contact to your list right away. Instead:

1. The visitor sends the form
2. They receive an automatic email with a confirmation link
3. They click the link to confirm their address
4. They're then added to your contacts

If they don't click the link, they stay unconfirmed and won't receive your emails. The same goes for a lead magnet attached to the form: access is only sent once they confirm.

Someone who is already one of your contacts doesn't receive a confirmation email: if they sign up again through an Email form block, their details and tags are updated right away.

Why use double opt-in?

• A cleaner list: only real, working email addresses make it onto your list. Mistyped or made-up addresses stay out.
• More emails reach the inbox: Gmail, Outlook and other email providers trust your emails more when people open them and few of them bounce back as undeliverable.
• Legal compliance: in some countries (notably Germany under GDPR regulations), double opt-in is legally required for marketing emails.

How to turn it on

Go to Settings → Emails and turn on Double opt-in. This applies to every Email form block on your site.

Note

Double opt-in only applies to the Email form block. Contacts who come from a Form, a free or paid product (including through the Product block), an import, a manual addition or the API (another app connected to your account) are added directly, without a confirmation email.