Mailchimp Double Opt-in
Mailchimp takes advantage of a two-step verification process known as Double Opt-In. Sound like fancy internet jargon? Let’s take the edge off: All this means is that when someone first signs up for your MailChimp newsletter, they won’t be added to your email list until they receive a second email after signing up. The second email will prompt your customer to confirm that they want to be on your mailing list. Once they complete this step they will officially be added to your email newsletter list within MailChimp.
Requiring MailChimp Double Opt-in for Privy Signups
Before modifying these settings you must first have completed your Email Provider Integration in your Privy account.
Go into the edit mode for your campaign and navigate to the option labeled “Automation” outlined in red below.
Click on the checkbox to the right of the "Require Double opt-in?" text outlined in red and save your Automation rule.