Not seeing email exists on customer form

[montezfrenchrdi]

Hi Shopify world!

I am trying to figure out how to show a email exists message on a customer/newsletter form. My code is below:

{%- form 'customer', id: 'footer-newsletter', class: 'Footer__Newsletter Form' -%}
                  {%- if form.posted_successfully? -%}
                    <p class="Form__Alert Alert Alert--success">{{ 'footer.newsletter.success' | t }}</p>
                  {%- else -%}
                    {%- if form.errors -%}
                      <p class="Form__Alert Alert Alert--error">{{ form.errors | default_errors }}</p>
                    {%- endif -%}

                    <input type="hidden" name="contact[tags]" value="newsletter">
                    <input type="email" name="contact[email]" class="Form__Input" aria-label="{{ 'footer.newsletter.input' | t }}" placeholder="{{ 'footer.newsletter.input' | t }}" required>
                    <button type="submit" class="Form__Submit Button Button--primary"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 320 512"><!--! Font Awesome Pro 6.0.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license (Commercial License) Copyright 2022 Fonticons, Inc. --><path d="M96 480c-8.188 0-16.38-3.125-22.62-9.375c-12.5-12.5-12.5-32.75 0-45.25L242.8 256L73.38 86.63c-12.5-12.5-12.5-32.75 0-45.25s32.75-12.5 45.25 0l192 192c12.5 12.5 12.5 32.75 0 45.25l-192 192C112.4 476.9 104.2 480 96 480z"/></svg><!--{{ 'footer.newsletter.submit' | t }}--></button>
                  {%- endif -%}
                {%- endform -%}

[Zworthkey]

@montezfrenchrdi 
https://help.shopify.com/en/manual/promoting-marketing/create-marketing/customer-contact-information

CHeck this link it would be most helpful.