Twitter users who have opted to receive direct messages from anyone can now find DMs from users they don’t follow in their Requests folders.
Facebook made a similar move with its Messenger application in October 2015, allowing all users to communicate with one another but placing messages from non-friends in a then-new Message Requests folder.
— Twitter (@Twitter) May 30, 2017
If you have the “Receive messages from anyone” setting enabled, incoming messages from people you don’t follow will appear as Requests in the Messages tab. New group conversations that you’re added to by people you don’t follow will also appear in Requests. Entering the conversation, you will be asked to either delete or accept the message. Accepting the message will allow you to engage with the person, and will move the message to your inbox. Please note that they will not know you have seen the message until you have accepted their request.
Deleting the message will remove it from your inbox. Note: Deleting a message will not prevent that account from sending you messages in the future. You will always have the option to block the account or report the conversation. Blocked accounts cannot send you messages unless you unblock them.
Accepting the message will allow you to engage with the person. All media will be hidden prior to accepting the message. If you wish to view the hidden media, click or tap view media.
Note: The option to accept or delete messages and view media from someone new that you don’t follow is only available on the Twitter for iOS and Android applications and twitter.com.