40017 – AT&T 10DLC Spam Message Rejected
AT&T has rejected your message for spam on the 10DLC route. Please check the content of your message and ensure you have obtained opt-ins for your senders.
40017 – AT&T 10DLC Spam Message Rejected API
AT&T has rejected your message for spam on the 10DLC route. Please check the content of your message and ensure you have obtained opt-ins for your senders.