diff --git a/group_vars/all/unattended_upgrade.yml b/group_vars/all/unattended_upgrade.yml
index 69818cd..541b1b2 100644
--- a/group_vars/all/unattended_upgrade.yml
+++ b/group_vars/all/unattended_upgrade.yml
@@ -2,3 +2,4 @@ apticron_email: 'hostmaster@mozilla.community'
 unattended_origins_patterns:
   - 'origin=Ubuntu,archive=${distro_codename}-security,label=Ubuntu'
 unattended_mail: 'hostmaster@mozilla.community'
+unattended_mail_only_on_error: 'true'