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About Double Opt-in

To help you build a better audience, Mailchimp confirms that subscribers signed up to receive your emails. Learn the benefits of the opt-in process and how it works.

Single Opt-in vs. Double Opt-in

Single opt-in and double opt-in are two settings for your signup form, that have different processes and methods.

How Mailchimp Prevents and Handles Abuse

Learn the steps we take to prevent abuse of our system, and how we handle abuse when it happens.

Brazilian Data Protection FAQs

Get answers to common questions about Mailchimp and the Brazilian Data Protection Regulation (LGPD).

General Data Protection Regulation FAQs

Get answers to common questions about Mailchimp and the General Data Protection Regulation (GDPR).

About Mailchimp for iOS

Manage your account from your iPhone or iPad with Mailchimp's mobile app. Learn how to get started.

Troubleshoot 2-Factor Authentication

There are a few ways to troubleshoot if you're having problems with 2-factor authentication on your Mailchimp account.

Set Up 2-Factor Authentication with SMS

Learn how to set up and use SMS 2-factor authentication to enhance your account's security.

Set Up a 2-Factor Authentication App at Login

Learn how to set up a 2-factor authentication app like Google Authenticator to increase data security for your Mailchimp account.

Where to Edit Template Code

With Mailchimp's template language, you can code an email template right from your account. Learn how to add template images and find your template's HTML.

Troubleshoot the Opt-in Confirmation Email

If people are signing up for your list and aren't receiving some of the emails that are part of the double opt-in process, here are some things to check.

Translate the Mailchimp Embed Code

With Mailchimp, you can embed signup forms right on your site. Learn how to translate these forms using custom code.