Your previous messages between yourself and the person you're blocking won't be deleted, so you have to manually delete those messages if you don't want them.
If you block someone on Messenger, they will not be able to send you messages, and you will not receive any messages from them. However, any messages you sent to them before blocking will still be visible in their chat history.
No, blocking does not delete messages.
You won't be able to view those saved messages after blocking them, since they'll be removed from your chat and friends list.
Blocking Someone on Android Messages and Apple iMessage
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.
Profiles won't be notified when you block them.
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.
To find out if someone has blocked you on Messenger, you should first send them a message. If your message is not delivered, even after the recipient has been online, you're most likely blocked. To tell if your message isn't delivered, it will have an empty circle with a check mark for an icon.
Wait a while and then check the Sent icon.
If the person never received or opened the message, the original Sent icon—the hollow circle with a checkmark inside—will still be there. If the icon hasn't changed and you know the person has been on Facebook or Messenger, they've probably blocked you.
If You Block Someone, Does It Remove the Conversation
Nope. Blocking someone will not delete the conversation thread from any side. In other words, the old conversations will remain in Messenger, and you will be able to read them until you manually delete the chat thread.
When you delete a message in Messenger, you only delete it for yourself. The other party can still see it. But you can overcome this by unsending a message.
You can permanently unsend a message that you've sent or just hide a message from your view. If you select Unsend for You, other people in the chat will still see the messages in their chat screen. If you select Unsend for Everyone, people included in the chat won't be able to see the unsent message.
Is it possible to delete old messages from Messenger for both sides? Of course. Nowadays, most messaging applications enable their users to recall their mistakenly-sent words within a certain period (not long in duration). For example, Facebook allows you to unsend a message within 10 minutes.
Instead of blocking a person, you can restrict them. This means the conversation is moved from your chat list and they can't see when you're active.
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.
Then, click “Unfriend.” When you unfriend someone, they can still see your profile and send you messages. If you do not want someone to be able to see your profile, items you post on your timeline, tag you, or send you messages, then you should block this person.
The two have separate functions, though you can view both settings in the same place. Blocking on Facebook removes the person as your friend and also blocks them on Messenger, while blocking on Messenger only blocks the person's calls and messages. The process to block and unblock someone is very similar.
If you see the display image of the person you're looking for, click on it. You'll be able to partially view the profile (depending on their privacy settings) if they've simply unfriended you. But if you've been blocked, you won't be able to access anything.
If you've blocked them, their message never goes through. So there's nothing for you to read. So there will never be a read receipt. If you sent a text with read receipt on but before they opened it, you turned off read receipt, it should not show a read receipt.
It is possible the person you are unable to contact might have deactivated their Facebook or Messenger account, or their account has been terminated by Facebook. Since the account no longer exists, Facebook displays this message to indicate the person is no longer available.
A filled-in blue circle next to your message means that your message was delivered. And, when a friend has read your message, a small version of your friend's photo will appear next to your message. Mary Straub and 20,053 others like this.