Besides, T-Mobile users often face this problem. It can happen for many reasons, but the sender or recipient is usually part of blocked contacts. You may see “Free Message: Unable to Send Message, Blocking Active” on the screen. When message blocking is active, the recipient does not receive any messages you try to send. You may have message blocking active, check with your carrier and ask if it is possible, if so ask how to disable the feature.
Reboot your phone, then call your carrier, before you assume it’s on the other person’s phone. Her address changed, and that caused autopay to fail. After falsely assuming I had blocked her, and being upset with me, it was her bill being overdue so they suspended her texting. My girlfriend texted me and got that message. If it is – be certain the person you are texting to has their phone settings enabled to send and receive text messages. It could be a general rule or it could be a punishment. It means that person has all text messaging blocked by their carrier and can’t send or receive any text messages. Message Blocking Is Active – What It Means And How To Fix
