You send a message, and instead of the usual blue bubble, it turns green. Sometimes it also says Not Delivered underneath, with a small red circle next to it. iMessage not delivered green bubble situations are common, and almost every case comes down to a simple, fixable reason.
This guide explains what the color actually means, why delivery fails, and the exact steps to get blue bubbles working again.
What a Green Bubble Actually Means
A green bubble means your message did not go through iMessage. It was sent as a regular text instead, using SMS, MMS, or RCS.
Blue bubbles only appear when both you and the other person are using iMessage. The moment that connection breaks, the message falls back to a different system, and the color changes.
This is normal Apple behavior, not a bug. The color is simply telling you which method actually carried your message.
Why It Also Says Not Delivered
A green bubble on its own just means the message went out as a text. Not Delivered is a separate, stronger warning.
It shows up when the message failed completely, on iMessage and on the text fallback. Nothing reached the other person at all.
This usually points to a connection problem, a blocked contact, or an issue with the recipient’s device rather than anything wrong with your settings. The steps below help you figure out which one applies.
An iMessage not delivered green bubble result like this is worth separating from a plain green bubble that still went through as a regular text. One means the message arrived a different way. The other means it did not arrive at all.
Common Reasons Behind This
There is rarely one single cause. Here is what tends to actually be behind it.
- The other person does not have an Apple device. Android phones cannot receive iMessages, so texts to them always show green.
- iMessage is turned off, either on your phone or theirs.
- A weak or missing internet connection. iMessage needs data or Wi-Fi to send, unlike regular SMS.
- iMessage is temporarily down. Apple’s own servers have short outages now and then.
- Settings were not updated after switching phones. This is common right after getting a new iPhone.
- The recipient has blocked your number. Blocked messages often fail silently or show as undelivered.
- Airplane Mode is on, cutting off both data and cellular signal.
- The recipient’s phone is off or out of signal for an extended time.
- RCS is active but not fully working. iOS 18 and later support RCS with Android users, which still shows green but behaves differently from plain SMS.
Most people find their answer in the first four items on this list. The rest are worth checking if those do not explain it.
These causes also stack sometimes. A phone that just switched carriers, sitting on a weak signal, right after an iOS update, can trigger an iMessage not delivered green bubble result even though no single cause looks obvious on its own.
How to Fix iMessage Not Delivered, Green Bubble
Work through these steps in order. Each one rules something out.
- Check your internet connection. iMessage needs Wi-Fi or cellular data, so confirm one of them is active.
- Turn Airplane Mode off, if it happens to be on.
- Confirm iMessage is turned on. Go to Settings, then Apps, then Messages, and check the iMessage toggle.
- Check Send & Receive settings. In the same Messages settings, confirm your number or email is selected correctly.
- Restart your iPhone. This clears many small connection issues on its own.
- Turn iMessage off, then back on. This forces the phone to reactivate the service from scratch.
- Check Apple’s System Status page. This shows whether iMessage is having a wider outage right now.
- Update iOS. Go to Settings, then General, then Software Update.
- Ask the recipient to check their settings too. The block could be entirely on their end.
- Try sending to a different contact. If that works, the issue is likely tied to one specific person.
- Sign out of iMessage and sign back in with your Apple ID. This refreshes your account connection.
- See if the next message goes through. If it still fails, the cause is worth narrowing down further.
Quick Reference Table
| What You’re Seeing | Most Likely Cause |
|---|---|
| Every message is green, for everyone | iMessage turned off, or no internet |
| Only one contact shows green | They do not have iMessage, or you’re blocked |
| Green after switching to a new iPhone | Settings not updated on the new device |
| Not Delivered with a red exclamation mark | Failed on both iMessage and the fallback text |
| Started right after an update | Temporary bug, often solved with a restart |
| Works for some contacts, not others | Specific to that person’s device or settings |
Green Bubbles With Android Contacts
If the other person uses an Android phone, green is expected and permanent. iMessage is only available between Apple devices, so this is not something you can fix on your end.
Since iOS 18, Apple added support for RCS messaging with Android users. This still shows green, but it can include read receipts, typing indicators, and better quality photos and videos compared to plain SMS.
RCS depends on the other person’s carrier and device supporting it too. If it is not working well, that limitation usually sits outside your phone entirely.
When It’s Just One Contact
If a single conversation keeps failing while everyone else shows blue normally, the fix is usually smaller and more specific to that person.
Check whether you have accidentally blocked them, or whether they may have blocked you. Go to Settings, then Apps, then Messages, then Blocked Contacts, to check your side.
Ask them to confirm iMessage is switched on for their number as well. A setting turned off on just one end is enough to break the connection for that contact alone.
When It’s Every Message, Not Just One Person
Widespread green bubbles point to something bigger than a single contact issue. Your connection, your Apple ID, or Apple’s own servers are the usual suspects here.
Start with your internet connection, since iMessage simply cannot function without it. Then check the iMessage toggle itself in Settings.
If both of those look fine, check Apple’s System Status page next. A short outage explains a sudden, widespread iMessage not delivered green bubble shift better than anything on your device.
Fixing It After Getting a New iPhone
This is one of the most common triggers for this problem. A new phone does not automatically carry over every messaging setting the way people expect.
Go to Settings, then Apps, then Messages, and confirm iMessage is switched on. Then tap Send & Receive to check your number or email address is selected properly.
It can also help to deregister iMessage on your old device if you still have access to it. Apple’s own deregistration tool online works too if the old phone is no longer with you.
When to Get More Help
Most cases clear up with the steps above. A few signs point toward something that needs closer attention.
- Green bubbles happen with every contact, even ones who definitely use iMessage
- The problem continues after restarting, updating, and toggling iMessage off and on
- Apple’s System Status page shows no outage, yet nothing improves
- Messages fail even on a strong, confirmed Wi-Fi connection
If all of that applies, contacting Apple Support directly is a reasonable next step. They can check account-level issues that are not visible from your settings alone.
A persistent iMessage not delivered green bubble pattern across many contacts, rather than just one or two, is usually the clearest sign that the problem sits with your account rather than anyone you are texting.
Preventing This in the Future
A few habits keep blue bubbles working consistently.
- Keep iOS updated so messaging fixes reach your phone automatically
- Deregister iMessage properly before switching to a non-Apple phone
- Double check Messages settings right after setting up any new iPhone
- Keep a stable Wi-Fi or cellular connection active when sending anything important
- Avoid toggling iMessage on and off unnecessarily, since it takes a moment to fully reactivate each time
Frequently Asked Questions (FAQs)
Question . Why does iMessage show a green bubble instead of blue?
Answer : Green means the message was sent as a regular text through SMS, MMS, or RCS instead of iMessage, usually because the recipient does not have iMessage available or it is turned off somewhere.
Question . What does Not Delivered actually mean on a green bubble?
Answer : It means the message failed both as an iMessage and as a fallback text. Nothing reached the recipient at all, which usually points to a connection or blocking issue.
Question . Can a blocked contact cause a green bubble with Not Delivered?
Answer : Yes. If someone has blocked your number, messages often fail to deliver entirely, which can show up exactly this way.
Question . Why did my messages turn green after I got a new iPhone?
Answer : Messaging settings do not always carry over automatically. Check Settings, then Messages, to confirm iMessage is on and your number is set correctly.
Question . Does turning iMessage off and back on actually help?
Answer : Yes, often. It forces your phone to reconnect with Apple’s servers, which clears many small, temporary glitches.
Question . Will messages to Android phones ever turn blue?
Answer : No. iMessage is exclusive to Apple devices, so texts to Android phones will always appear green, even with RCS support added in iOS 18.
Question . Does RCS fix the green bubble issue with Android users?
Answer : It improves the experience with features like read receipts and better media quality, but the bubble color stays green either way.
Question . Can a weak internet connection cause Not Delivered messages?
Answer : Yes. iMessage needs an active data or Wi-Fi connection to send, so a weak or dropped connection can cause messages to fail outright.
Question . How do I check if iMessage is down for everyone, not just me?
Answer : Check Apple’s System Status page. If iMessage shows an issue there, it is a wider problem and not something specific to your phone.
Question . When should I contact Apple Support about this?
Answer : If green bubbles and failed deliveries continue after checking your connection, settings, and Apple’s status page, and it affects contacts who definitely use iMessage.
Wrapping Up
An iMessage not delivered green bubble situation almost always comes down to something simple. A missing connection, a setting left off after a new phone, or a message going to someone without iMessage at all.
Work through the checks in order, starting with your connection and the iMessage toggle itself. Those two cover the majority of cases on their own.
Save contacting Apple Support for when the basics do not resolve it at all. Most green bubbles and failed deliveries clear up within a few minutes once the real cause is found.
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