diff --git a/avisstage/models.py b/avisstage/models.py
index 7588207..33661f8 100644
--- a/avisstage/models.py
+++ b/avisstage/models.py
@@ -53,9 +53,12 @@ class Normalien(models.Model):
         return self.stages.filter(public=True).order_by('-date_debut')
 
     def has_nonENS_email(self):
-        return not (
-            is_email_ens(self.mail, True)
-            and is_email_ens(self.user.email, True)
+        return (
+            self.user.email_address_set
+            .exclude(confirmed_at__isnull=True)
+            .exclude(email__endswith="ens.fr")
+            .exclude(email__endswith="ens.psl.eu")
+            .exists()
         )
 
     def nom_complet(self):