Also, I really like the way that the last version did not have the wysiwyg editor, and that plain text was the only option. Can this be made an option in the plugin?
It would also be good to have it so that there is an option for limiting the other possible recipients based on role. (e.g. subscribers could not communicate with other subscribers; subscribers could only communicate with authors or editors).
This is a plugin send private message on wordpress, which can be used for communication, it enables users on your site to send private messages to each other, User can send private message to multiple groups (wordpress’s role) or multiple members with rich text editor – WordPress editor default, user can attach photos, files to messages.