--- title: "How to Send WordPress New Account Registration Email to Mailchimp?" url: https://nexterwp.com/docs/send-wordpress-new-account-registration-email-to-mailchimp/ date: 2023-03-04 modified: 2026-09-14 lang: en author: "Aditya Sharma" description: "Someone creating an account is a good moment to ask whether they also want your emails. The Login & Signup block in Nexter Blocks Pro adds a subscribe checkbox that..." image: https://nexterwp.com/wp-content/uploads/2024/05/send-wordpress-new-account-registration-email-to-mailchimp-1024x519.jpg word_count: 387 --- # How to Send WordPress New Account Registration Email to Mailchimp? ## Key Takeaways - Nexter Blocks Pro incluye en el bloque Login & Signup una casilla de suscripción que envía a los nuevos usuarios a Mailchimp cuando se registran. - Nexter > Extra Options > Settings conecta Mailchimp CRM con una API Key y un Audience / List ID, y el sitio usa la misma audiencia para todos los formularios. - MailChimp Subscribe añade una casilla obligatoria para enviar el formulario, y con Double Opt-In activado Mailchimp envía un correo de confirmación antes de suscribir al usuario. Someone creating an account is a good moment to ask whether they also want your emails. The Login & Signup block in Nexter Blocks Pro adds a subscribe checkbox that sends new users to Mailchimp. *For every Login & Signup setting in one place, see the [Login & Signup block guide](https://nexterwp.com/docs/add-login-signup-in-wordpress/).* [LIVE BLOCK LINK](https://nexterwp.com/nexter-blocks/blocks/wordpress-login-form/) ## Before You Start - **Edition:** **Pro** — the Login & Signup block is part of Nexter Blocks Pro.- **Block to enable:** Login & Signup, switched on under **Nexter > Blocks** in your WordPress dashboard.- **Registration switched on:** in **Settings > General**, tick **Anyone can register**.- **A Mailchimp API key and Audience ID:** see [About API keys](https://mailchimp.com/help/about-api-keys/) and [Find your audience ID](https://mailchimp.com/help/find-audience-id/). ## Connect Mailchimp - Go to **Nexter > Extra Options > Settings**. - Turn on **Connect Mailchimp CRM** and click its settings icon. ![The Connect Mailchimp CRM card in Nexter Extra Options settings](https://nexterwp.com/wp-content/uploads/2026/09/login-signup-mailchimp-settings.webp) - Enter your **API Key** and **Audience / List ID**, save the popup, then save the settings page. ## Add the Subscribe Field - Add the **Login & Signup** block to your page and click **Design from Scratch**. - In the **Forms** panel, set **Type** to **Register**. ![The Forms panel with Type, Layout and Content Alignment](https://nexterwp.com/wp-content/uploads/2026/09/login-signup-form-type.webp) - Choose a **Layout**: **Inline Form** shows the form on the page, **Button** opens it from a toggle button. - Open the **Register** tab, click **+ Add Field** and choose **MailChimp Subscribe** in the **Field** dropdown. ![The Register tab with a MailChimp Subscribe field, Double Opt-In and Tags](https://nexterwp.com/wp-content/uploads/2026/09/login-signup-register-mailchimp.webp) - Write the checkbox text, then choose whether to turn on **Double Opt-In**. - Optional: turn on **Tags** and enter the tag IDs to apply to these subscribers. Save. ## How It Behaves - When someone registers with the box ticked, their email is added to your Mailchimp audience.- With Double Opt-In off they are added as subscribed straight away; with it on, Mailchimp emails them to confirm first.- The keys come from the site-wide Mailchimp settings, so every form uses the same audience. ## Limitations - **Pro only.**- **The subscribe checkbox must be ticked for the form to submit.** Leave the field off any form where subscribing should be optional.- One audience per site, set in Extra Options. ## Troubleshooting ### The form does nothing when someone clicks register The subscribe box is not ticked. Tick it to submit, or remove the MailChimp Subscribe field from the form. ### Subscribers do not reach Mailchimp Check the API key ends with its data centre (for example `-us21`) and that the Audience ID is correct. ## Related Docs - [Login & Signup block: all settings](https://nexterwp.com/docs/add-login-signup-in-wordpress/)- [Make user registration GDPR compliant](https://nexterwp.com/docs/make-wordpress-user-registration-gdpr-compliant/)- [Add custom fields to the registration form](https://nexterwp.com/docs/add-custom-fields-to-wordpress-registration-form/) ## Frequently Asked Questions **Q: What do I need before sending WordPress registrations to Mailchimp?** A: Nexter Blocks Pro needs a few pieces in place before the subscribe checkbox can send new users to Mailchimp. The Login & Signup block must be enabled under Nexter > Blocks, registration must be turned on in Settings > General with Anyone can register checked, and you need a Mailchimp API key plus Audience ID. That setup matters because the form uses the site-wide Mailchimp settings for every registration form on the site. **Q: How do I connect Mailchimp in Nexter?** A: Mailchimp is connected from Nexter > Extra Options > Settings by turning on Connect Mailchimp CRM and opening its settings icon. Enter the API Key and Audience / List ID, then save both the popup and the settings page. That site-wide connection is what lets every Login & Signup form send subscribers to the same audience instead of configuring each form separately. **Q: How do I add a Mailchimp subscribe checkbox to a WordPress registration form?** A: The Login & Signup block adds the MailChimp Subscribe field inside the Register tab of the form. Set the block Type to Register, choose a layout like Inline Form or Button, then add the field from + Add Field. The checkbox text is editable, and you can also turn on Double Opt-In or add Tags for those subscribers. **Q: Why does my registration form do nothing when I click register?** A: That usually happens when the subscribe box is not ticked. In this setup, the form only submits when the MailChimp Subscribe field is checked, so leaving it off blocks submission entirely. If subscribing should be optional, remove that field from the form instead of keeping it unchecked. **Q: Why are subscribers not reaching Mailchimp after registration?** A: The most common cause is a bad API key or Audience ID. The API key should end with its data centre suffix, such as -us21, and the Audience ID has to match the target audience exactly. Since Nexter uses one audience per site from Extra Options, a mismatch there affects every form using that connection. **Q: Should I use Double Opt-In for WordPress registrations?** A: Double Opt-In changes when someone becomes an active subscriber. With it off, new registrants are added as subscribed right away; with it on, Mailchimp sends a confirmation email first. That makes it a decision between faster list growth and an extra confirmation step. If you also need consent handling, [Make user registration GDPR compliant](https://nexterwp.com/docs/make-wordpress-user-registration-gdpr-compliant/) is the related setup to look at.