‘How do you know if someone blocked you on Messenger?’: Here’s how to use the Facebook app’s send and receive features to figure it out

• There’s no built-in tool that lets you know if someone blocked you on Facebook Messenger. 
• However, you can infer if you have been blocked on Messenger by the state of the message status icon.
• For privacy and security reasons, Facebook doesn’t reveal if someone on Facebook Messenger has blocked you.
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Facebook doesn’t make it easy to know whether someone has blocked you. 

They do this for privacy and security reasons, which means that, unfortunately, you won’t get confirmation that someone has blocked your account.  However, it is possible to deduce whether you’ve been blocked based on how the Messenger app behaves when you try to send a message.

Here’s how you can tell if someone’s blocked you on the Facebook messaging app. 

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How to know if someone blocked you on Messenger

Dave Johnson/Business Insider

When you use the Messenger app on your phone or in a browser on your desktop, you are probably familiar with the status icons next to the messages you send. There are four:

1. An unfilled, empty circle means the message has not been sent. This is typically because you don’t have any internet access when you try to send a message. 

2. An unfilled icon with a check mark means the message has been sent but not delivered to the recipient.

3. An icon that’s filled in means the message has been delivered.

4. An icon that’s filled with your recipient’s profile picture means it has been read.  

As long as the recipient is logged into Facebook, your message should be delivered within a few moments, which means you’ll see the icon’s filled-in version. Of course, it might not be read for a while (your recipient needs to open Messenger and view the message thread). 

Dave Johnson/Business Insider

If you send a message to someone and the message is not delivered, it generally means one of two things:

• The user has not logged into Facebook
• The user has blocked you on Messenger

It’s not always possible to tell the difference, but if you see that the recipient has posted to his or her Facebook page or comments on other people’s posts, that implies he or she is logged into Facebook. If your message remains undelivered, you are probably blocked.