How do I deactivate the SMS Spam Filter? Updated December 14, 2017 14:34 Follow To deactivate this feature, visit your iPhone settings: 1. Tap on 'Messages' 2. SMS Filtering > Disable Truecaller. Related articles How to I filter spam messages on iPhone? Why do some numbers end up in SMS Junk? How can I subscribe/unsubscribe from the Newsletter? I've deleted the app but I still get notified about spam calls (red screen) Truecaller is not found in 'Call blocking & identification' settings Comments 0 comments Please sign in to leave a comment.