diff --git a/base_usability/models/ir_mail_server.py b/base_usability/models/ir_mail_server.py
index 2e1a0ab..6927354 100644
--- a/base_usability/models/ir_mail_server.py
+++ b/base_usability/models/ir_mail_server.py
@@ -17,18 +17,20 @@ class IrMailServer(models.Model):
             smtp_user=None, smtp_password=None, smtp_encryption=None,
             smtp_ssl_certificate=None, smtp_ssl_private_key=None,
             smtp_debug=False, smtp_session=None):
-        # _prepare_email_message() will remove the Bcc field in message
-        # that's why we need to save it and re-inject it in message
+        # Start copy from native method
         if not smtp_session:
             smtp_session = self.connect(
                 smtp_server, smtp_port, smtp_user, smtp_password, smtp_encryption,
                 smtp_from=message['From'], ssl_certificate=smtp_ssl_certificate,
                 ssl_private_key=smtp_ssl_private_key,
                 smtp_debug=smtp_debug, mail_server_id=mail_server_id)
+        # _prepare_email_message() will remove the Bcc field in message
+        # that's why we need to save it and re-inject it in message
         email_bcc = message['Bcc']
         smtp_from, smtp_to_list, message = self._prepare_email_message(
             message, smtp_session)
         message['Bcc'] = email_bcc
+        # End copy from native method
         logger.info(
             "Sending email from '%s' to '%s' Cc '%s' Bcc '%s' "
             "with subject '%s'. smtp_to_list=%s",