If you are getting a "Message blocking is active" on an iPhone, here are 5 things to try to fix the issue.
1. They might be blocked (how to unblock someone on iPhone demo in video)
2. Restart your iPhone once and sometimes twice.
3. Check for outages with your carrier
4. Update your iPhone (demo in video)
5. Check your SIM card
Full article here:
https://smarthomestarter.com/what-is-...
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