diff --git a/app/dao/notifications_dao.py b/app/dao/notifications_dao.py
index bcd7eec4d..36901aecd 100644
--- a/app/dao/notifications_dao.py
+++ b/app/dao/notifications_dao.py
@@ -23,6 +23,7 @@ from app.models import (
     NOTIFICATION_SENDING,
     NOTIFICATION_PENDING,
     NOTIFICATION_TECHNICAL_FAILURE,
+    NOTIFICATION_TEMPORARY_FAILURE,
     KEY_TYPE_NORMAL, KEY_TYPE_TEST)
 
 from app.dao.dao_utils import transactional
@@ -349,17 +350,32 @@ def dao_delete_notifications_and_history_by_id(notification_id):
 
 def dao_timeout_notifications(timeout_period_in_seconds):
     # update all notifications that are older that the timeout_period_in_seconds
-    #  with a status of created|sending|pending
+    # with a status of created|sending|pending
+
+    # Notifications still in created status are marked with a technical-failure:
+    #   the notification has failed to go to the provider
     update_at = datetime.utcnow()
     updated = db.session.query(Notification). \
         filter(Notification.created_at < (datetime.utcnow() - timedelta(seconds=timeout_period_in_seconds))). \
-        filter(Notification.status.in_([NOTIFICATION_CREATED, NOTIFICATION_SENDING, NOTIFICATION_PENDING])). \
+        filter(Notification.status == NOTIFICATION_CREATED). \
         update({'status': NOTIFICATION_TECHNICAL_FAILURE, 'updated_at': update_at}, synchronize_session=False)
     db.session.query(NotificationHistory). \
         filter(NotificationHistory.created_at < (datetime.utcnow() - timedelta(seconds=timeout_period_in_seconds))). \
-        filter(NotificationHistory.status.in_([NOTIFICATION_CREATED, NOTIFICATION_SENDING, NOTIFICATION_PENDING])). \
+        filter(NotificationHistory.status == NOTIFICATION_CREATED). \
         update({'status': NOTIFICATION_TECHNICAL_FAILURE, 'updated_at': update_at}, synchronize_session=False)
+
+    # Notifications still in sending or pending status are marked with a temporary-failure:
+    #   the notification was sent to the provider but there was not a delivery receipt, try to send again.
+    updated += db.session.query(Notification). \
+        filter(Notification.created_at < (datetime.utcnow() - timedelta(seconds=timeout_period_in_seconds))). \
+        filter(Notification.status.in_([NOTIFICATION_SENDING, NOTIFICATION_PENDING])). \
+        update({'status': NOTIFICATION_TEMPORARY_FAILURE, 'updated_at': update_at}, synchronize_session=False)
+    db.session.query(NotificationHistory). \
+        filter(NotificationHistory.created_at < (datetime.utcnow() - timedelta(seconds=timeout_period_in_seconds))). \
+        filter(NotificationHistory.status.in_([NOTIFICATION_SENDING, NOTIFICATION_PENDING])). \
+        update({'status': NOTIFICATION_TEMPORARY_FAILURE, 'updated_at': update_at}, synchronize_session=False)
     db.session.commit()
+
     return updated
 
 
diff --git a/tests/app/celery/test_scheduled_tasks.py b/tests/app/celery/test_scheduled_tasks.py
index 541c9fb6f..f5f1a44c9 100644
--- a/tests/app/celery/test_scheduled_tasks.py
+++ b/tests/app/celery/test_scheduled_tasks.py
@@ -66,8 +66,26 @@ def test_update_status_of_notifications_after_timeout(notify_api,
             status='sending',
             created_at=datetime.utcnow() - timedelta(
                 seconds=current_app.config.get('SENDING_NOTIFICATIONS_TIMEOUT_PERIOD') + 10))
+        not2 = sample_notification(
+            notify_db,
+            notify_db_session,
+            service=sample_service,
+            template=sample_template,
+            status='created',
+            created_at=datetime.utcnow() - timedelta(
+                seconds=current_app.config.get('SENDING_NOTIFICATIONS_TIMEOUT_PERIOD') + 10))
+        not3 = sample_notification(
+            notify_db,
+            notify_db_session,
+            service=sample_service,
+            template=sample_template,
+            status='pending',
+            created_at=datetime.utcnow() - timedelta(
+                seconds=current_app.config.get('SENDING_NOTIFICATIONS_TIMEOUT_PERIOD') + 10))
         timeout_notifications()
-        assert not1.status == 'technical-failure'
+        assert not1.status == 'temporary-failure'
+        assert not2.status == 'technical-failure'
+        assert not3.status == 'temporary-failure'
 
 
 def test_not_update_status_of_notification_before_timeout(notify_api,
diff --git a/tests/app/dao/test_notification_dao.py b/tests/app/dao/test_notification_dao.py
index 43c4b0bd1..1ea6b6871 100644
--- a/tests/app/dao/test_notification_dao.py
+++ b/tests/app/dao/test_notification_dao.py
@@ -949,8 +949,8 @@ def _notification_json(sample_template, job_id=None, id=None, status=None):
 
 
 def test_dao_timeout_notifications(notify_db, notify_db_session, ):
-    with freeze_time(datetime.utcnow() - timedelta(minutes=1)):
-        created = sample_notification(notify_db, notify_db_session)
+    with freeze_time(datetime.utcnow() - timedelta(minutes=2)):
+        created = sample_notification(notify_db, notify_db_session, status='created')
         sending = sample_notification(notify_db, notify_db_session, status='sending')
         pending = sample_notification(notify_db, notify_db_session, status='pending')
         delivered = sample_notification(notify_db, notify_db_session, status='delivered')
@@ -961,19 +961,19 @@ def test_dao_timeout_notifications(notify_db, notify_db_session, ):
     assert Notification.query.get(delivered.id).status == 'delivered'
     updated = dao_timeout_notifications(1)
     assert Notification.query.get(created.id).status == 'technical-failure'
-    assert Notification.query.get(sending.id).status == 'technical-failure'
-    assert Notification.query.get(pending.id).status == 'technical-failure'
+    assert Notification.query.get(sending.id).status == 'temporary-failure'
+    assert Notification.query.get(pending.id).status == 'temporary-failure'
     assert Notification.query.get(delivered.id).status == 'delivered'
     assert NotificationHistory.query.get(created.id).status == 'technical-failure'
-    assert NotificationHistory.query.get(sending.id).status == 'technical-failure'
-    assert NotificationHistory.query.get(pending.id).status == 'technical-failure'
+    assert NotificationHistory.query.get(sending.id).status == 'temporary-failure'
+    assert NotificationHistory.query.get(pending.id).status == 'temporary-failure'
     assert NotificationHistory.query.get(delivered.id).status == 'delivered'
     assert updated == 3
 
 
 def test_dao_timeout_notifications_only_updates_for_older_notifications(notify_db, notify_db_session):
     with freeze_time(datetime.utcnow() + timedelta(minutes=10)):
-        created = sample_notification(notify_db, notify_db_session)
+        created = sample_notification(notify_db, notify_db_session, status='created')
         sending = sample_notification(notify_db, notify_db_session, status='sending')
         pending = sample_notification(notify_db, notify_db_session, status='pending')
         delivered = sample_notification(notify_db, notify_db_session, status='delivered')