Update filters

filter-rules.py

@@ -258,10 +258,17 @@ def filter_message(self, message):
         message.delete()
         return
 
+    # delete Salesforce spam
+    if ('salesforce.com' in normalized_from
+            and 'sandbox' in message.subject.lower()):
+        self._log_result(message, 'deleting salseforce spam')
+        message.delete()
+        return
+
     # delete Rave junk
     if ('guardian@getrave.com' in normalized_from
-            and 'New Guardian Chat' in message.subject):
-        self._log_result(message, 'deleting rave message')
+            and 'new guardian chat' in message.subject.lower()):
+        self._log_result(message, 'deleting rave spam')
         message.delete()
         return