A double gray checkmark means the message was sent to the person's phone. Two blue checkmarks confirm the message was read.
Look for the checkmarks: A single gray checkmark indicates a successfully sent message. The appearance of a second gray checkmark shows your message was delivered to the recipient's phone. The two checkmarks will turn blue if the recipient has viewed your message.
The recipient may have turned read receipts off if you don't see the 'Seen' text or the eye icon. Try sending the person a DM. If they respond and you never saw the 'Seen' feedback, they've turned their read receipts off.
Apple's iMessage app lets you know if your message has been read; the sender and recipient must be using iMessages on an iPhone or iPad and have read receipts enabled.
The delivery status appears underneath the bubble when you enable Read Receipts in the iMessage settings menu. A green chat bubble indicates you're sending a regular text via SMS or MMS standards. This color is common when communicating with non-Apple users or after enabling text message fallback on your device.
Android. Depending on the Android device you're using, you might be able to see your messages as “Sent” and “Delivered” inside the messaging app you're using. If you are not able to see them as “Delivered,” there is one thing that you can do: Enable SMS delivery report.
The truth is that you can't tell if a person has blocked you based on the fact that your iMessage was sent as a text message alone. Regardless of whether you were blocked or not, you'll still hear the sound of the green bubble text being successfully sent as usual. The message doesn't bounce back.
When you send them an SMS and you get the "Delivered" notification underneath it, you weren't blocked. If you get a notification like "Message Not Delivered" or you get no notification at all, that's a sign of a potential block.
You may have noticed that the text messages in your iPhone's Messages app can appear as either green or blue. The difference? Green messages are ordinary SMS text messages, while blue messages are using Apple's proprietary iMessage format.
Some people don't have receipts enabled, and it's usually pretty easy to tell. If you send messages to them and they respond to you, but there is still no read receipt, odds are good that their read receipts are disabled. With Community, there are typically not regular read receipts that go along with text messages.
DELIVERED = confirmation the message has reached the recipient's phone but fails to show if it has been "seen" yet. "Delivered" is a good sign. It means that the text is ready and waiting for them to open it.
If the text message says delivered, that just means that it made it to its destination safely. If the recipient hasn't opened it, then it wouldn't show as “read”.
Read receipts are only sent by your phone when you have them on. If the other person has them on, you will continue to get receipts from them, but they will not get anything from you.
To be clear: Sent means it is on its way to the recipient, but delivered means the message was received. However, Delivered does not mean the message was read. Also, the recipient must also allow a "Message Received Receipt" to be sent to your phone so that you know it was delivered.
No, the text message will not say "delivered" on an Android device if it is blocked. However, you may still be able to tell if your message has been blocked by looking for other signs.
When a message is “read”, that means the recipient is ACTIVELY looking at the message (not just in Preview), and indicates attentiveness. By switching that option off, she's telling you that she doesn't want you to know if she has or has not read the message.
Check the Bubble Color
If you don't see a blue bubble on your end, then it's likely that they've blocked you on iMessage. It's important to note that this doesn't mean they have blocked your number altogether; it just means they have blocked you from sending them messages over iMessage.
A green text message on your iPhone isn't a sign that your phone number was blocked, or that the text was not delivered. Instead, it means that the message was sent as a standard SMS message rather than an iMessage, which will appear as blue.
If you are using Apple's iMessage technology, your text messages will be sent or received in blue. If you are using Short Messaging Service or SMS (traditional way), your text messages will be in green. In the iPhone message app, the outgoing message bubble is either green or blue.
If you send a message as a regular SMS in the green text bubble and you do not get a “Delivered” notification but instead get a notification similar to “Message not Delivered” or no message at all, that means you were probably blocked.
The most common issue of failed delivery of text messages is blocked Phone Numbers. You can try as many times as you want to send the messages but as long as the recipient has blocked your phone number on their phone, all your effort is in vain.
For Android, go to Settings > Call Settings > Additional Settings > Caller ID. Then, select Hide Number. Your calls will remain anonymous and you can bypass the blocked list.
If you see a green message bubble
The person that you sent the message to doesn't have an Apple device. iMessage is turned off on your device or on your recipient's device.
When someone switches to a new device that doesn't run on iOS, they may leave their phone number in the app. In that case, you may not get the “Delivered” tag if you message them, but the message bubbles will be blue.