When your i Phone shows a „Not Delivered” icon next to a message, it can feel frustrating. The problem pops up for many users across the U. S. and abroad. It usually happens when the phone can’t reach Apple’s servers or the recipient’s device is offline. The error appears on both i Message and SMS messages, though i Message is more common.
The root cause is often a network hiccup or a misconfigured setting. i Message relies on a stable internet connection and correct Apple ID credentials. If either is wrong, the message fails to send. Users can resolve the issue with a few simple steps before calling support.
First, confirm that Wi‑Fi or cellular data is active. Turn airplane mode on, then off. This refreshes the radio connections. Next, make sure you are connected to a reliable network. If you’re on a public hotspot, try switching to your own Wi‑Fi or to mobile data. Restarting the router can also help if you’re using home Wi‑Fi. When you’re back online, try sending the message again. If it still fails, move to the next step.
Open Settings, tap Messages, and toggle i Message off. Wait a few seconds, then turn it back on. This forces the app to reconnect to Apple’s servers. You can also reset network settings by selecting General, then Transfer or Reset i Phone, and choosing Reset Network Settings. This clears stored Wi‑Fi passwords and VPN configurations. After resetting, sign in to i Message again with your Apple ID. Many users report that the error disappears after this refresh.
i Message requires a correct Apple ID. Go to Settings, tap your name, and check that the email address is correct. If you recently changed your Apple ID password, update it in Settings > Messages > Send & Receive. Also, ensure that the date and time are set automatically. An incorrect time zone can confuse the server’s authentication process. If the phone’s clock is off by more than a few minutes, i Message may refuse to send.
If the „Not Delivered” icon remains after trying these fixes, the issue may be on Apple’s side. Check Apple’s System Status page for any outages. If the status shows all services up, it could be a device‑specific bug. Contact Apple Support through the Support app or by phone. They can run diagnostics and, if necessary, repair the device.