diff --git a/models/scop_instance.py b/models/scop_instance.py
index 7441cc74d3a4ada71eb961600b1191fe8d164a80..480c937ceebd5ac746f80961e55dcb8f80ecde78 100644
--- a/models/scop_instance.py
+++ b/models/scop_instance.py
@@ -159,11 +159,6 @@ class ScopInstance(models.Model):
                 if len(partners_to_validate) == 1:
                     raise ValidationError(logger)
 
-        if len(validated_partners) > 0:
-            return self.send_mass_mail_adhesion(
-                self.env["res.partner"].browse(validated_partners)
-            )
-
     def update_membership_date(self):
         for partner in self.instance_partner_ids:
             partner.update({"statistic_membership_date": self.date_membership})