diff --git a/TODO.md b/TODO.md
index a449e93d..d7bd41f0 100644
--- a/TODO.md
+++ b/TODO.md
@@ -311,11 +311,8 @@ Replace celery by a custom solution?
             *priority: custom Thread backend
             *bulk: wrapper arround django-mailer to avoid loading django system
 
-
 pip3 install https://github.com/APSL/django-mailer-2/archive/master.zip
 
-
-
 # TASKS_ENABLE_UWSGI_CRON_BEAT (default) for production + system check --deploy
     if 'wsgi' in sys.argv and settings.TASKS_ENABLE_UWSGI_CRON_BEAT:
         import uwsgi
@@ -326,8 +323,6 @@ pip3 install https://github.com/APSL/django-mailer-2/archive/master.zip
 # TASK_BEAT_BACKEND = ('cron', 'celerybeat', 'uwsgi')
 # SHip orchestra production-ready (no DEBUG etc)
 
-
-
 # import module and sed
 # if setting.value == default. remove
 # reload generic admin view ?redirect=http...
diff --git a/orchestra/contrib/mailer/backends.py b/orchestra/contrib/mailer/backends.py
index d6cd0f59..cfa8748a 100644
--- a/orchestra/contrib/mailer/backends.py
+++ b/orchestra/contrib/mailer/backends.py
@@ -12,6 +12,7 @@ class EmailBackend(BaseEmailBackend):
         if not email_messages:
             return
         num_sent = 0
+        # TODO if multiple messages queue, else async?
         for message in email_messages:
             priority = message.extra_headers.get('X-Mail-Priority', Message.NORMAL)
             if priority == Message.CRITICAL:
diff --git a/orchestra/contrib/mailer/engine.py b/orchestra/contrib/mailer/engine.py
index 9ed40abb..62b9e40c 100644
--- a/orchestra/contrib/mailer/engine.py
+++ b/orchestra/contrib/mailer/engine.py
@@ -12,7 +12,7 @@ def send_message(message, num, connection, bulk):
         connection.close()
         connection = None
     if connection is None:
-        # Reset connection
+        # Reset connection with django 
         connection = get_connection(backend='django.core.mail.backends.smtp.EmailBackend')
         connection.open()
     error = None
@@ -44,7 +44,6 @@ def send_pending(bulk=100):
     for retries, seconds in enumerate(settings.MAILER_DEFERE_SECONDS):
         delta = timedelta(seconds=seconds)
         qs = qs | Q(retries=retries, last_retry__lte=now-delta)
-
     for message in Message.objects.filter(state=Message.DEFERRED).filter(qs).order_by('priority'):
         send_message(message, num, connection, bulk)
     if connection is not None: