I’d like to see the core server have basic player to player communications built in like email
I am NOT saying internet email nor am I saying a full fledged comminicationsions system. Those could be done with plugins.
Rather built in send & receive functions, login notification, e.g. “You have mail” plus basic admin functions like purge and delete_expired etc. It would include database management of the messages. This way plugins can enhance the core messaging system adding sorting / group messaging or client side Graphical interfaces without having to worry about databases or possible security holes.