diff --git a/mail_tracking_mailgun/models/mail_tracking_email.py b/mail_tracking_mailgun/models/mail_tracking_email.py
index 45cfa6cf4..77ec2db05 100644
--- a/mail_tracking_mailgun/models/mail_tracking_email.py
+++ b/mail_tracking_mailgun/models/mail_tracking_email.py
@@ -44,6 +44,8 @@ class MailTrackingEmail(models.Model):
             'bounced': 'hard_bounce',
             'dropped': 'reject',
             'accepted': 'sent',
+            'failed': 'error',
+            'rejected': 'error',
         }
 
     def _mailgun_event_type_verify(self, event):