diff --git a/synchro_orleans/data/management/commands/email_new_invoices.py b/synchro_orleans/data/management/commands/email_new_invoices.py
index bb76fd3..338c4e5 100644
--- a/synchro_orleans/data/management/commands/email_new_invoices.py
+++ b/synchro_orleans/data/management/commands/email_new_invoices.py
@@ -3,6 +3,7 @@ import json
 import shutil
 import os
 import requests
+import logging
 
 from django.core.management.base import BaseCommand, CommandError
 from django.conf import settings
@@ -19,6 +20,8 @@ from synchro_orleans import signature
 notification_timeout = settings.INVOICES_NOTIFICATION_TIMEOUT
 invoice_view_url_base = settings.INVOICE_VIEW_URL_BASE
 
+logger = logging.getLogger(__name__)
+
 class Command(BaseCommand):
 
     help = """
@@ -47,6 +50,7 @@ class Command(BaseCommand):
             url = '{url}/{nameid}?{query}'.format(url=settings.AUTHENTIC2_USER_INFO_URL,
                                                   nameid=nameid.name_id,
                                                   query=signed_query)
+            logger.debug('requesting: %s' % url)
             response = requests.get(url)
             data = response.json()
             attachment = os.path.join(settings.INVOICES_DIR, 'facture_%s.pdf' % invoice.id)
@@ -60,6 +64,7 @@ class Command(BaseCommand):
             message = EmailMultiAlternatives(self.email_subject, text_body, self.email_from, [result.email])
             message.attach_file(os.path.join(settings.INVOICES_DIR, 'facture_%s.pdf'% invoice.id))
             message.send()
+            logger.debug('email for invoice nr. %s sent' % invoice.id)
 
             invoice.date_envoi_dernier_mail = make_aware(datetime.now(), get_current_timezone())
             InvoiceNotificationEmail.objects.create(invoice_number=invoice.id)