diff --git a/elections/utils.py b/elections/utils.py
index fd2c572..d85f2e7 100644
--- a/elections/utils.py
+++ b/elections/utils.py
@@ -422,7 +422,7 @@ def send_mail(election, subject, body, reply_to):
                     to=[v.email],
                     reply_to=[reply_to],
                     # On modifie l'adresse de retour d'erreur
-                    headers={"Return-Path": reply_to},
+                    headers={"Return-Path": "kadenios@www.eleves.ens.fr"},
                 ),
                 v,
             )