diff --git a/addons/mail/controllers/main.py b/addons/mail/controllers/main.py
index dbf6f23e031..b9f0d8e8abc 100644
--- a/addons/mail/controllers/main.py
+++ b/addons/mail/controllers/main.py
@@ -191,38 +191,6 @@ class MailController(http.Controller):
 
         return self._redirect_to_record(model, res_id, access_token)
 
-    @http.route('/mail/follow', type='http', auth='user', methods=['GET'])
-    def mail_action_follow(self,  model, res_id, token=None):
-        comparison, record, redirect = self._check_token_and_record_or_redirect(model, int(res_id), token)
-        if comparison and record:
-            try:
-                record.sudo().message_subscribe_users()
-            except Exception:
-                return self._redirect_to_messaging()
-        return redirect
-
-    @http.route('/mail/unfollow', type='http', auth='user', methods=['GET'])
-    def mail_action_unfollow(self, model, res_id, token=None):
-        comparison, record, redirect = self._check_token_and_record_or_redirect(model, int(res_id), token)
-        if comparison and record:
-            try:
-                # TDE CHECKME: is sudo really necessary ?
-                record.sudo().message_unsubscribe_users([request.uid])
-            except Exception:
-                return self._redirect_to_messaging()
-        return redirect
-
-    @http.route('/mail/new', type='http', auth='user')
-    def mail_action_new(self, model, res_id, action_id):
-        # TDE NOTE: this controller is deprecated and will disappear before v11.
-        if model not in request.env:
-            return self._redirect_to_messaging()
-        params = {'view_type': 'form', 'model': model}
-        if action_id:
-            # Probably something to do
-            params['action'] = action_id
-        return werkzeug.utils.redirect('/web?#%s' % url_encode(params))
-
     @http.route('/mail/assign', type='http', auth='user', methods=['GET'])
     def mail_action_assign(self, model, res_id, token=None):
         comparison, record, redirect = self._check_token_and_record_or_redirect(model, int(res_id), token)