title: Wagtail formbuilder submissions are not sending emails
body: <p>Contact form data (using Wagtail's formbuilder) is not sending to email what is the issue?</p>
  <p>I added email host also but not sending data to email</p>
  <p>The form response (contact data) is being saved in wagtail admin but data not sending to email.</p>
  <p><strong>Console Output</strong></p>
  <pre><code>DEBUG CONSOLE
  MIME-Version: 1.0
  Content-Transfer-Encoding: 7bit
  Subject: contact form submission
  From: archanapco8@gmail.com
  To: ranjuranjitha. 1997@gmail.com
  Date: Mon, 08 Nov 2021 08:13:45 -0000
  Message-ID: &lt;163635922547.9304.15785246130187863651@DESKTOP-NC1TOGR&gt;
  Auto-submitted: auto-generated
  Your Name: ranjitha
  Your company: mdrift
  Your email address: rmanju@dgmail.com
  When do you want to start?: 20-09-2021
  What is your budget: 1000
  Describe your needs, the more we know, the better: hi
  [08/Nov/2021 13:43:45] &quot;POST /contact-us/ HTTP/1.1&quot; 200 9590
  [08/Nov/2021 13:43:45] &quot;GET /static/img/Thank-you.png HTTP/1.1&quot; 200 15470
  O
  
  </code></pre>
  <p><strong>contact/models.py</strong></p>
  <pre class="lang-py prettyprint-override"><code>
  from wagtail.contrib.forms.models import AbstractEmailForm, AbstractFormField
  
  class FormField(AbstractFormField):
      page = ParentalKey('Form Page', related_name='custom_form_fields')
  
  
  class Form Page(AbstractEmailForm):
      thank_you_text = RichTextField(blank=True)
  
      content_panels = AbstractEmailForm.content_panels + [
          InlinePanel('custom_form_fields', label=&quot;Form fields&quot;),
          FieldPanel('thank_you_text', classname=&quot;full&quot;),
          MultiFieldPanel([
              FieldRowPanel([
                  FieldPanel('from_address', classname=&quot;col6&quot;),
                  FieldPanel('to_address', classname=&quot;col6&quot;),
              ]),
              FieldPanel('subject'),
          ], &quot;Email Notification Config&quot;),
      ]
  
      def get_form_fields(self):
          return self.custom_form_fields.all()
  
  </code></pre>
  <p><strong>form_page.html</strong></p>
  <pre class="lang-html prettyprint-override"><code>
  {% load static wagtailcore_tags widget_tweaks %}
  
  {% block content %}
  
  &lt;h1&gt;Contact&lt;/h1&gt;
  &lt;br&gt;
  
  &lt;form action=&quot;{% pageurl page %}&quot; method=&quot;POST&quot;&gt;
      {% csrf_token %}
  
      {% if form.non_field_errors %}
        &lt;div class=&quot;alert alert-danger&quot; role=&quot;alert&quot;&gt;
          {% for error in form.non_field_errors %}
            {{ error }}
          {% endfor %}
        &lt;/div&gt;
      {% endif %}
  
      {% for field in form.visible_fields %}
        &lt;div class=&quot;form-group&quot;&gt;
          {{ field.label_tag }}
          {% render_field field class+=&quot;form-control&quot; %}
        &lt;/div&gt;
      {% endfor %}
  
      &lt;button type=&quot;submit&quot; class=&quot;btn btn-primary&quot; &gt;Submit&lt;/button&gt;
  &lt;/form&gt;
  
  {% endblock %}
  </code></pre>
  <p><strong>settings/base.py</strong></p>
  <pre class="lang-py prettyprint-override"><code>EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
  EMAIL_HOST = 'smtp.gmail.com'
  EMAIL_PORT = 587
  EMAIL_HOST_USER = 'ranjuranjitha.1997@gmail.com'
  EMAIL_HOST_PASSWORD = 'Password$'
  EMAIL_USE_TLS = True
  EMAIL_USE_SSL = True
  DEFAULT_FROM_EMAIL ='ranjuranjitha.1997@gmail.com'
  EMAIL_TO = 'ap8366106@gmail.com'
  </code></pre>
  <p>This is dev.py file. I given email backend also but not sending the mail.</p>
  <p><strong>settings/dev.py</strong></p>
  <pre class="lang-py prettyprint-override"><code>
  from .base import *
  
  # SECURITY WARNING: don't run with debug turned on in production!
  DEBUG = True
  
  # SECURITY WARNING: keep the secret key used in production secret!
  SECRET_KEY = 'django-insecure-iu22rfee4za6ro+mez!4*@_trpy7!ebpbtu8iw$95v(rh_5fib'
  
  # SECURITY WARNING: define the correct hosts in production!
  ALLOWED_HOSTS = ['*'] 
  
  EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
  
  
  try:
      from .local import *
  except ImportError:
      pass
  </code></pre>