WordPress Private Message Plugin allows site members to send private messages (PM) to each other or site admin. Users will have their own inbox and sent box. WordPress Private Message Plugin is a great choice for you, if you want to implement front-end messaging system for your users.
WordPress Private Message Plugin Features:
- An authorized user can send messages to any user ( or admin ) on your site using their username
- Front-end inbox for managing messages
- Sent message box to track history
- Control message limit for different user role
- Enable/Disable messaging between users and site admin
- Reveive admin messages to a custom email address