remove test log, configure sendgrid sandbox via env var

oser_backend/mails/signals.py

 """Mails app signals."""
 
 from django.dispatch import Signal, receiver
-from django.db.models.signals import post_save
 from python_http_client.exceptions import HTTPError
 
 from logs import get_logger
@@ -34,8 +33,3 @@ def log_failed(sender, exception, **kwargs):
         logger.exception(exception.read())
     else:
         logger.exception(exception)
-
-
-@receiver(post_save)
-def test_logger(sender, **kwargs):
-    logger.info('TEST')

oser_backend/oser_backend/settings/production.py

@@ -20,13 +20,11 @@ ALLOWED_HOSTS = [
 SESSION_COOKIE_SECURE = True
 CSRF_COOKIE_SECURE = True
 SECURE_BROWSER_XSS_FILTER = True
-# SECURE_SSL_REDIRECT = True
 
 # Mails
 MAILS_ENABLED = True
-
-# Visits
-VISITS_NOTIFY_PARTICIPATE = True
+SENDGRID_SANDBOX_MODE_IN_DEBUG = os.environ.get(
+    'SENDGRID_SANDBOX_MODE_IN_DEBUG', True)
 
 # Celery settings