Error 30007 “Message Delivery – Message Filtered” when Sending SMS

with Twilio. This happens when SMS’s are sent without the footer “type stop to unsubscribe” and it will not go away by then using it in the footer. The solution is to register the SMS sender / company as an A2P10DLC Starter customer profile. I think it costs about $40 but will make all the problems go away and blocked SMS recipients will receive their text messages again