diff --git a/addons/auth_signup/controllers/main.py b/addons/auth_signup/controllers/main.py
index 41210d1d6d7..edec161385b 100644
--- a/addons/auth_signup/controllers/main.py
+++ b/addons/auth_signup/controllers/main.py
@@ -43,14 +43,13 @@ class AuthSignupHome(Home):
             try:
                 self.do_signup(qcontext)
                 # Send an account creation confirmation email
-                if qcontext.get('token'):
-                    User = request.env['res.users']
-                    user_sudo = User.sudo().search(
-                        User._get_login_domain(qcontext.get('login')), order=User._get_login_order(), limit=1
-                    )
-                    template = request.env.ref('auth_signup.mail_template_user_signup_account_created', raise_if_not_found=False)
-                    if user_sudo and template:
-                        template.sudo().send_mail(user_sudo.id, force_send=True)
+                User = request.env['res.users']
+                user_sudo = User.sudo().search(
+                    User._get_login_domain(qcontext.get('login')), order=User._get_login_order(), limit=1
+                )
+                template = request.env.ref('auth_signup.mail_template_user_signup_account_created', raise_if_not_found=False)
+                if user_sudo and template:
+                    template.sudo().send_mail(user_sudo.id, force_send=True)
                 return self.web_login(*args, **kw)
             except UserError as e:
                 qcontext['error'] = e.args[0]
diff --git a/addons/auth_signup/tests/__init__.py b/addons/auth_signup/tests/__init__.py
index 32057dd7973..14a97684e06 100644
--- a/addons/auth_signup/tests/__init__.py
+++ b/addons/auth_signup/tests/__init__.py
@@ -1,2 +1,6 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
 from . import test_login
 from . import test_reset_password
+from . import test_auth_signup
diff --git a/addons/auth_signup/tests/test_auth_signup.py b/addons/auth_signup/tests/test_auth_signup.py
new file mode 100644
index 00000000000..0e8eb72ca40
--- /dev/null
+++ b/addons/auth_signup/tests/test_auth_signup.py
@@ -0,0 +1,54 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from unittest.mock import patch
+
+import odoo
+from odoo.tests import HttpCase
+from odoo import http
+
+class TestAuthSignupFlow(HttpCase):
+
+    def setUp(self):
+        super(TestAuthSignupFlow, self).setUp()
+        res_config = self.env['res.config.settings']
+        self.default_values = res_config.default_get(list(res_config.fields_get()))
+
+    def _activate_free_signup(self):
+        self.default_values.update({'auth_signup_uninvited': 'b2c'})
+
+    def _get_free_signup_url(self):
+        return '/web/signup'
+
+    def test_confirmation_mail_free_signup(self):
+        """
+        Check if a new user is informed by email when he is registered
+        """
+
+        # Activate free signup
+        self._activate_free_signup()
+
+        # Get csrf_token
+        self.authenticate(None, None)
+        csrf_token = http.Request.csrf_token(self)
+
+        # Values from login form
+        name = 'toto'
+        payload = {
+            'login': 'toto@example.com',
+            'name': name,
+            'password': 'mypassword',
+            'confirm_password': 'mypassword',
+            'csrf_token': csrf_token,
+        }
+
+        # Override unlink to not delete the email if the send works.
+        with patch.object(odoo.addons.mail.models.mail_mail.MailMail, 'unlink', lambda self: None):
+            # Call the controller
+            url_free_signup = self._get_free_signup_url()
+            self.url_open(url_free_signup, data=payload)
+            # Check if an email is sent to the new userw
+            new_user = self.env['res.users'].search([('name', '=', name)])
+            self.assertTrue(new_user)
+            mail = self.env['mail.message'].search([('message_type', '=', 'email'), ('model', '=', 'res.users'), ('res_id', '=', new_user.id)], limit=1)
+            self.assertTrue(mail, "The new user must be informed of his registration")