Don't send email notification on DisallowedHost error.

www/conservancy/settings.py

@@ -41,7 +41,46 @@ TEMPLATE_DIRS = (
 )
 del _root_dir
 
-# try:
-#     from djangodebug import conservancy_hostname as FORCE_CANONICAL_HOSTNAME
-# except:
-#     pass
+LOGGING = {
+    'version': 1,
+    'disable_existing_loggers': False,
+    'formatters': {
+        'default': {
+            'format': '%(asctime)s %(levelname)s %(name)s: %(message)s',
+            'datefmt': '%Y-%m-%d %H:%M:%S',
+        },
+    },
+    'filters': {
+        'require_debug_false': {
+            '()': 'django.utils.log.RequireDebugFalse'
+        }
+    },
+    'handlers': {
+        'mail_admins': {
+            'level': 'ERROR',
+            'filters': ['require_debug_false'],
+            'class': 'django.utils.log.AdminEmailHandler'
+        },
+        'console': {
+            'level': 'DEBUG',
+            'class': 'logging.StreamHandler',
+            'formatter': 'default',
+        },
+    },
+    'loggers': {
+        'django.request': {
+            'handlers': ['mail_admins'],
+            'level': 'ERROR',
+            'propagate': True,
+        },
+        # Avoid email notification on DisallowedHost error.
+        'django.security.DisallowedHost': {
+            'handlers': ['console'],
+            'propagate': False,
+        },
+    },
+    'root': {
+        'handlers': ['console'],
+        'level': 'INFO',
+    },
+}