Hello, I'm looking for an SMS blocker which has an option to block text messages from all unknown numbers which aren't in your contact list AND also to delete the blocked messages immediately after receiving them so that you'll never know they were sent to you. Most SMS blockers seem to just move the blocked SMS to a separate folder so even blocked you'll still find out that you've got it. Is there a program that has both options at the same time? I have Samsung Galaxy S5 Neo. I would appreciate your help.