feat: add blacklist to form

settings.py

@@ -264,3 +264,9 @@ RECAPTCHA_PUBLIC_KEY = '6LeILd0ZAAAAAB9xO_y8kS292wv2ikl0M8s7zFn9'
 RECAPTCHA_PRIVATE_KEY = '6LeILd0ZAAAAAOGF1AvxdiGcXWLjr2BzHaQ8Zush'
 
 RECAPTCHA_SCORE_THRESHOLD = 0.5
+
+ALDRYN_FORMS_ACTION_BACKENDS = {
+    'default': 'project.action_backends.DefaultAction',
+    'email_only': 'aldryn_forms.action_backends.EmailAction',
+    'none': 'aldryn_forms.action_backends.NoAction',
+}

src/project/action_backends.py

@@ -0,0 +1,13 @@
+# -*- coding: utf-8 -*-
+from aldryn_forms.action_backends_base import BaseAction
+
+class DefaultAction(BaseAction):
+    verbose_name = 'Default'
+
+    def form_valid(self, cmsplugin, instance, request, form):
+        email = form.cleaned_data.get('emailfield_1', None)
+        if email and email in ['eric.jones.z.mail@gmail.com']:
+            return
+        recipients = cmsplugin.send_notifications(instance, form)
+        form.instance.set_recipients(recipients)
+        form.save()