How do I unblock someone in Messenger?

If you've blocked messages from someone, you can unblock them later. To unblock someone on Messenger:
Desktop App:
  1. Open Messenger for Windows or macOS.
  2. Click your photo in the top left.
  3. Click Preferences.
  4. Click Account Settings. Your Facebook settings page will open in your default browser.
  5. In your Facebook settings, click Blocking on the left.
  6. Scroll down to Block messages.
  7. Click Unblock next to the name of the person you want to unblock.
Desktop (messenger.com):
  1. Open Messenger for Windows or macOS.
  2. Next to Chats, click your profile picture, then click Preferences.
  3. Click Manage Blocking.
  4. In your Facebook settings, click Blocking on the left.
  5. Scroll down to Block messages.
  6. Click Edit, then click See your blocked list.
  7. Click Unblock next to the name of the person you want to unblock.
Keep in mind that if you block someone on Facebook, you automatically block them on Messenger too. Learn more about how to unblock someone on Facebook.
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