diff --git a/src/postorius/forms.py b/src/postorius/forms.py
index 8687e5b..374dfd4 100644
--- a/src/postorius/forms.py
+++ b/src/postorius/forms.py
@@ -219,6 +219,24 @@
                                         for address in user_emails)
 
 
+class ListAnonymousSubscribe(forms.Form):
+    """Form fields to join an existing list as an anonymous user.
+    """
+
+    email = forms.CharField(
+        label=_('Your email address'),
+        validators=[validate_email],
+        error_messages={
+            'required': _('Please enter an email address.'),
+            'invalid': _('Please enter a valid email address.')})
+
+    display_name = forms.CharField(
+        label=_('Your name (optional)'), required=False)
+
+    def __init__(self, *args, **kwargs):
+        super(ListAnonymousSubscribe, self).__init__(*args, **kwargs)
+
+
 class ListSettingsForm(forms.Form):
     """
     Base class for list settings forms.
diff --git a/src/postorius/templates/postorius/lists/summary.html b/src/postorius/templates/postorius/lists/summary.html
index 6dc2a77..f964d0f 100644
--- a/src/postorius/templates/postorius/lists/summary.html
+++ b/src/postorius/templates/postorius/lists/summary.html
@@ -70,8 +70,23 @@
             </form>
         {% endif %}
     {% else %}
-        <p>{% trans 'If you want to subscribe to this list, you have to log in first.' %}</p>
+      <div>
+        <p>{% trans 'If you want to subscribe to this list and you have an account, please log in first.' %}</p>
         <p><a href="{% url LOGIN_URL %}?next={{ next|default:request.path|urlencode }}" class="btn btn-primary">{% trans 'Log In' %}</a></p>
+      </div>
+      <hr />
+      <div>
+        <p>
+        {% blocktrans %}
+        However you can also subscribe without creating an account.
+        If you wish to to so, please use the form below.
+        {% endblocktrans%}
+        </p>
+        <form action="{% url 'list_anonymous_subscribe' list.list_id %}"
+              method="post" class="form-horizontal">
+          {% bootstrap_form_horizontal anonymous_subscription_form 2 8 'Subscribe' %}
+        </form>
+      </div>
     {% endif %}
 
     {# List metrics #}
diff --git a/src/postorius/tests/mailman_api_tests/test_list_summary.py b/src/postorius/tests/mailman_api_tests/test_list_summary.py
index ee4aee5..b7cf12d 100644
--- a/src/postorius/tests/mailman_api_tests/test_list_summary.py
+++ b/src/postorius/tests/mailman_api_tests/test_list_summary.py
@@ -22,6 +22,7 @@
 from django.core.urlresolvers import reverse
 
 from postorius.tests.utils import ViewTestCase
+from postorius.forms import ListAnonymousSubscribe
 
 
 class ListSummaryPageTest(ViewTestCase):
@@ -41,13 +42,15 @@
             user=self.user, email=self.user.email, verified=True)
 
     def test_list_summary_logged_out(self):
-        # Response must contain list obj but not the form.
+        # Response must contain list obj and anonymous subscribe form.
         response = self.client.get(reverse('list_summary',
                                    args=('foo@example.com', )))
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response.context['list'].fqdn_listname,
                          'foo@example.com')
-        self.assertNotContains(response, '<form ')
+        self.assertIsInstance(response.context['anonymous_subscription_form'],
+                              ListAnonymousSubscribe)
+        self.assertContains(response, '<form ')
 
     def test_list_summary_logged_in(self):
         # Response must contain list obj and the form.
diff --git a/src/postorius/tests/mailman_api_tests/test_subscriptions.py b/src/postorius/tests/mailman_api_tests/test_subscriptions.py
index 424b8ee..a6b9ddb 100644
--- a/src/postorius/tests/mailman_api_tests/test_subscriptions.py
+++ b/src/postorius/tests/mailman_api_tests/test_subscriptions.py
@@ -20,6 +20,7 @@
 from allauth.account.models import EmailAddress
 from django.contrib.auth.models import User
 from django.core.urlresolvers import reverse
+from mock import patch
 
 from postorius.tests.utils import ViewTestCase
 
@@ -61,6 +62,20 @@
             self.mod_list.moderate_request(req['token'], 'discard')
         super(TestSubscription, self).tearDown()
 
+    @patch('mailmanclient._client.MailingList.subscribe')
+    def test_anonymous_subscribe(self, mock_subscribe):
+        response = self.client.post(
+            reverse('list_anonymous_subscribe',
+                    args=('open_list.example.com', )),
+            {'email': 'test@example.com'})
+        mock_subscribe.assert_called_once()
+        mock_subscribe.assert_called_with(
+            'test@example.com', pre_verified=False, pre_confirmed=False)
+        self.assertRedirects(
+            response, reverse('list_summary',
+                              args=('open_list.example.com', )))
+        self.assertHasSuccessMessage(response)
+
     def test_subscribe_open(self):
         # The subscription goes straight through.
         self.client.login(username='testuser', password='pwd')
diff --git a/src/postorius/urls.py b/src/postorius/urls.py
index 0cb9e10..ba81faf 100644
--- a/src/postorius/urls.py
+++ b/src/postorius/urls.py
@@ -36,6 +36,9 @@
         name='list_summary'),
     url(r'^subscribe$', list_views.ListSubscribeView.as_view(),
         name='list_subscribe'),
+    url(r'^anonymous_subscribe$',
+        list_views.ListAnonymousSubscribeView.as_view(),
+        name='list_anonymous_subscribe'),
     url(r'^change_subscription$', list_views.ChangeSubscriptionView.as_view(),
         name='change_subscription'),
     url(r'^unsubscribe/$', list_views.ListUnsubscribeView.as_view(),
diff --git a/src/postorius/views/list.py b/src/postorius/views/list.py
index ecc55d9..9f36c4f 100644
--- a/src/postorius/views/list.py
+++ b/src/postorius/views/list.py
@@ -45,7 +45,7 @@
     DigestSettingsForm, AlterMessagesForm, ListAutomaticResponsesForm,
     ListIdentityForm, ListMassSubscription, ListMassRemoval, ListAddBanForm,
     ListHeaderMatchForm, ListHeaderMatchFormset, MemberModeration,
-    DMARCMitigationsForm)
+    DMARCMitigationsForm, ListAnonymousSubscribe)
 from postorius.models import Domain, List, MailmanApiError, Mailman404Error
 from postorius.auth.decorators import (
     list_owner_required, list_moderator_required, superuser_required)
@@ -233,6 +233,7 @@
             data['subscribe_form'] = ListSubscribe(user_emails)
         else:
             user_emails = None
+            data['anonymous_subscription_form'] = ListAnonymousSubscribe()
         return render(request, 'postorius/lists/summary.html', data)
 
 
@@ -319,6 +320,34 @@
         return redirect('list_summary', self.mailing_list.list_id)
 
 
+class ListAnonymousSubscribeView(MailingListView):
+    """
+    view name: `list_anonymous_subscribe`
+    """
+
+    def post(self, request, list_id):
+        """
+        Subscribes an email address to a mailing list via POST and
+        redirects to the `list_summary` view.
+        This view is used for unauthenticated users and asks Mailman core to
+        verify the supplied email address.
+        """
+        try:
+            form = ListAnonymousSubscribe(request.POST)
+            if form.is_valid():
+                email = form.cleaned_data.get('email')
+                self.mailing_list.subscribe(email, pre_verified=False,
+                                            pre_confirmed=False)
+                messages.success(request, _('Please check your inbox for '
+                                            'further instructions'))
+            else:
+                messages.error(request,
+                               _('Something went wrong. Please try again.'))
+        except HTTPError as e:
+            messages.error(request, e.msg)
+        return redirect('list_summary', self.mailing_list.list_id)
+
+
 class ListUnsubscribeView(MailingListView):
 
     """Unsubscribe from a mailing list."""