Text says "Sent" but not "Delivered": what it means and how to fix it
Your message left your phone, but it never says Delivered. Here's where it's sitting and the handful of reasons it gets stuck.
Where your message is right now
| What you see | Where the message is | What to do |
|---|---|---|
| Red ! or "Not delivered", "Message not sent", "Tap to try again" | Still on your phone. It never reached the network. | Check signal and flight mode, then tap to retry. See the checklist below. |
| "Sent" with no "Delivered", or one grey tick | Waiting in the middle (the message centre, or the chat app's server). | Usually nothing. It arrives when their phone is back on and in signal. |
| "Delivered" or two ticks | On their phone. | They have it. Read receipts ("Read", blue ticks) are a separate setting they may have switched off. |
The radio part is short: your phone to the nearest mast, then the mast nearest them to their phone. Everything between runs over the network's cables. The middle keeps a copy and keeps trying, which is called store and forward. The interactive Wirebook lesson on how a text finds a phone lets you break masts and switch phones off to watch this happen.
Why it says Sent but never Delivered
- Their phone is off, flat or in flight mode. The most common reason. It turns up as Delivered when they switch it back on, as long as that's within the network's waiting time.
- They're out of signal: underground, in a basement, abroad without roaming. Same as above.
- Delivery reports are off. For plain SMS, "Delivered" relies on a delivery report. Some phones and some networks don't send them, so you only ever see Sent. On Android, most messaging apps have an "SMS delivery reports" switch in their settings.
- They've blocked you. Blocking usually looks just like an undelivered message, and with plain texts it can even say Delivered. You can't tell for certain from your side, so don't read too much into it.
- They switched from iPhone to Android. Your iPhone may still be sending them iMessages that nobody collects. Long-press the message and choose Send as Text Message. They can fix it for everyone by turning off iMessage on their old iPhone or using Apple's "Deregister iMessage" page.
- The message waited too long. If their phone stays off longer than the network keeps messages (often 1 to 7 days), the copy is deleted. With delivery reports on you may get a "not delivered" note.
If it says Not delivered (it's stuck on your phone)
- Check you have signal and flight mode is off. Wi-Fi calling helps for chat apps and some networks' texts, but plain SMS usually needs mobile signal.
- Check the number, including the country code if they're abroad (+44, +1 and so on).
- Pay-as-you-go: check you have credit or a text allowance. Short-code numbers (5 or 6 digits) may be blocked by a premium-text bar on your account.
- Restart your phone. It's dull but it re-registers you with the network.
- Android: in your messaging app's advanced settings, check the message centre number (SMSC) hasn't been cleared or changed. Your network's help pages list the right one.
- Very long message with emoji or pictures? It may have become an MMS, which needs mobile data. See SMS vs MMS vs RCS vs iMessage.
Related
Not receiving texts at all? · Why a text gets split into several · SMS length counter
Questions
What's the difference between Sent and Delivered?
Sent means the message reached the network's message centre (or the chat app's server). Delivered means the other phone received it. Anything between the two is the network waiting for their phone.
If someone's phone is off, will they get my text later?
Usually yes, as soon as it's back on and in signal, as long as that's within the network's waiting time, which is often between a day and a week.
Does Sent but not Delivered mean I've been blocked?
Not necessarily. A phone that's off or out of signal looks exactly the same, and blocked plain texts can even show Delivered. You can't tell for sure from your side.
Why does my iMessage to one person never say Delivered?
They may have moved to Android or their phone is off. Long-press the message and choose Send as Text Message to reach them by SMS.
How long does the network keep trying?
It depends on the network and the sender's settings, typically from a day to about a week. After that the waiting copy is deleted.
Published 路 updated .