diff --git a/mail_tracking/controllers/main.py b/mail_tracking/controllers/main.py
index 44af0c0e5..ac273ea38 100644
--- a/mail_tracking/controllers/main.py
+++ b/mail_tracking/controllers/main.py
@@ -41,6 +41,7 @@ class MailTrackingController(MailController, DiscussController):
             "ua_family": request.user_agent.browser or False,
         }
 
+    # TODO Remove useless controller
     @http.route(
         [
             "/mail/tracking/all/<string:db>",
diff --git a/mail_tracking/models/mail_tracking_email.py b/mail_tracking/models/mail_tracking_email.py
index 053687fbc..e6eb55750 100644
--- a/mail_tracking/models/mail_tracking_email.py
+++ b/mail_tracking/models/mail_tracking_email.py
@@ -372,6 +372,7 @@ class MailTrackingEmail(models.Model):
                 _logger.debug("Concurrent event '%s' discarded", event_type)
         return event_ids
 
+    # TODO Remove useless method
     @api.model
     def event_process(self, request, post, metadata, event_type=None):
         # Generic event process hook, inherit it and
diff --git a/mail_tracking/models/mail_tracking_event.py b/mail_tracking/models/mail_tracking_event.py
index c92fc6f3b..c00af256a 100644
--- a/mail_tracking/models/mail_tracking_event.py
+++ b/mail_tracking/models/mail_tracking_event.py
@@ -119,6 +119,10 @@ class MailTrackingEvent(models.Model):
         )
         return self._process_data(tracking_email, metadata, event_type, state)
 
+    @api.model
+    def process_sent(self, tracking_email, metadata):
+        return self._process_status(tracking_email, metadata, "sent", "sent")
+
     @api.model
     def process_delivered(self, tracking_email, metadata):
         return self._process_status(tracking_email, metadata, "delivered", "delivered")