Blocking, reporting and deleting

Blocking

How does blocking work in Messenger?

How do I unblock someone in Messenger?

Why am I not allowed to send messages in Messenger?

Reporting

What should I do if someone's bothering me in Messenger?

How do I report a threatening message?

How do I report someone that’s pretending to be me or someone else in Messenger?

How do I report an end-to end encrypted chat in Messenger?

Deleting

How do I delete messages, conversations or photos I've received in Messenger?

How do I remove or unsend a message that I've sent in Messenger?

How do I archive a conversation in Messenger? What’s the difference between archiving and deleting?

How do I find an archived conversation in Messenger?

Can I see deleted messages in Messenger?