In the Messages app , you can block unwanted messages, filter messages from unknown senders, and report spam or junk messages.
Blocking Texts on Android
Navigate to the Messages app. Choose the text from the number you want to block. From the drop-down menu, select “Details.” From the following screen, tap the option for blocking the number.
Android phones move all blocked messages into a folder on the phone called “Spam and Blocked.” That means that the phone is still collecting messages from the blocked people; they just aren't notifying you.
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.
If an Android user has blocked you, Lavelle says, “your text messages will go through as usual; they just won't be delivered to the Android user.” It's the same as an iPhone, but without the “delivered” notification (or lack thereof) to clue you in.
When someone that you've blocked texts you, their texts go nowhere. They won't receive any notification that they're blocked, and their messages will still look like they've been sent. But you won't receive any of them, and you can't respond.
Blocking Someone on Android Messages and Apple iMessage
When you block a contact over Android or iPhone, they will still be able to send you text messages. These messages will not show up on your phone but the sender will see the messages as sent. They won't know that they've been blocked.
When you call a number that has blocked yours, you may hear one or half a ring or no rings at all and then the call will go to voicemail. If it goes straight to voicemail, their phone may also be off or out of range, or they may have temporarily turned on Do Not Disturb mode to work, drive, or sleep.
When you block a phone number or contact, they can still leave a voicemail, but you won't get a notification. Messages that are sent or received won't be delivered. Also, the contact won't get a notification that the call or message was blocked.
The next major impact of blocking a number is on SMS messages. When you block a number on Android or iPhone, that number cannot send you a regular text message (SMS or MMS). Even though the message will be sent from the sender's side but you won't receive the message. Messages, like calls, have a one-way impact.
Your old messages remain blue, but the latest texts you send after they've blocked you turn green. However, the bubble colors aren't accurate clues. They could mean the recipient turned off their phone, gone offline, or switched from iOS to Android.
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.
The message will not get delivered if your phone doesn't have a Wifi or Cellular data connection. Go to Settings > Wifi to join a wifi network or rejoin the network to refresh the connection. On the other hand, go to Settings > Cellular to join your cellular data network.
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.
Blocked messages will not come through when unblocked.
While someone is blocked, any sent text messages will be blocked by Messages. You won't be able to retrieve them. If you decide to unblock the person, you will receive the texts normally.
6. An iMessage Not Delivered error doesn't mean someone blocked your number. This is a common myth, and the iMessage "Not Delivered" error just means your text didn't reach the other person! If you're seeing the iMessage Not Delivered error, try enabling SMS texts on your iPhone.
If you have confirmation that someone has blocked your contact on their phone, there's no way to unblock yourself remotely using any of your devices. To unblock your number, you need to either have physical access to the person's phone or talk the situation through with them and have them reverse the action.
If you see a green message bubble instead of a blue one, then that message was sent using MMS/SMS instead of iMessage. There are several reasons for this: 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.
If your iPhone messages are green, it means they're being sent as SMS texts rather than iMessages. You'll always see green when texting Android users, or when you're not connected to the internet.
Unfortunately, no. If a text message is blocked by the recipient's Android phone, the sender will not see a "delivered" status on the message. The best way to determine if your message was blocked is to try and have an open conversation with the recipient.
When you block a phone number or contact, they can still leave a voicemail, but you won't get a notification. Messages that are sent or received won't be delivered. Also, the contact won't get a notification that the call or message was blocked.
Any messages you send to a contact person who has blocked you will always show one check mark (a sign of a message sent) but never show the second checkmark (a sign of message delivered).