diff --git a/addons/mail/res_users.py b/addons/mail/res_users.py
index 6efb218a658..5b84fad24e7 100644
--- a/addons/mail/res_users.py
+++ b/addons/mail/res_users.py
@@ -41,7 +41,7 @@ class res_users(osv.osv):
     }
     
     _defaults = {
-        'notification_email_pref': 'all',
+        'notification_email_pref': 'none',
     }
     
     def __init__(self, pool, cr):