In Facebook Messenger there is already a function to approve who can, and cannot, contact you. When an unknown person seeks contact with you via a message, you first get the option to approve (or deny) the person to contact you.
But there is another mailbox, an inbox that is easy to miss. Here we show you how to see your hidden messages.
The function is there to avoid spam and shady requests from mysko types, but there is also the risk that you will miss important messages from people who actually want something important from you (especially if you manage your business via Facebook). As the undersigned, who won a festival pass a few years ago, but bitterly realized it disappeared into the hidden mailbox.