Have you got any notification in your device like “This message has been temporarily removed because the sender’s account requires verification.”? If the question answer is ‘Yes” then the following discussion will be very useful for you.
“This message has been temporarily removed because the sender’s account requires verification.” is actually a security notification or message which is delivered by Facebook. If any account of facebook may be hacked or interfered and the account try to send you messages and some messages have been send using that hacked account, Facebook always alerts the person sending this message with this kinds of notification.
Generally facebook receive a report of an account hacking. So then facebook lock the account and then send this notification to anyone who tries to send message to that account. This kinds of message will appear when there is need for an account for whatever a reason.
Facebook sender’s account requires verification
“This message has been temporarily removed because the sender’s account requires verification.” can be also appeared when the owner of a facebook account reports account to facebook having been used maliciously.
This message has been removed.
Facebook can lock any account if they find any kinds of violation. So When Facebook also locks an account for any reason, this message they try to send and which previously send will show this kind of message “this message has been removed or facebook sender’s account requires verification”. The problem can be corrected or unlocked if the owner verifies the account
Facebook has the supreme power upon its users.At any time they can ask your to verify your facebook account. Keep in your mind that they will give you no warning. Facebook may delete message on your facebook friend’s account. So you may probably lose your previous messages send via that account. In this way facebook is protecting their user’s information from being hacked.