SmartSMSFilter Lght - the small and very intuitive in use program which will allow you to control incoming sms receiving and isolate bulk and unwanted messages.
To any person or phone number from your Contacts you can assign one of three actions on incoming sms:

- Accept sms with a signal (standard case);
- Accept sms without any signal;
- Block sms;

These actions also may be assigned to all undefined numbers and all numbers which are not present in your Contacts.
Now protecting yourself from bulk messages is easy as 1-2-3.