Develop a Ruby on Rails application that allows registered users to send and receive messages within the platform. The platform should include a messaging interface that allows users to compose, read, reply, and delete messages. The application should have an inbox and sent messages folder for each user. Users should be able to search for specific messages and mark messages as read or unread. The application should also have a notification system that alerts users when they receive a new message. The design of the messaging interface should be clean and user-friendly, with a modern and responsive design. The platform should be secure, with proper authentication and authorization mechanisms to ensure user privacy and security.
This prompt doesn't seem malicious.