by Shamim Hasan on WordPress.org
Front End PM is a Private Messaging system and a secure contact form to your WordPress site.This is full functioning messaging system from front end.

Responsive
Front End PM is a Private Messaging system to your WordPress site.This is full functioning messaging system from front end. The messaging is done entirely through the front-end of your site rather than the Dashboard. This is very helpful if you want to keep your users out of the Dashboard area.
Some Front End PM PRO Features
- Multiple Recipients
- Only admin
- Group message
- Email Piping
- Read Receipt
- Email template
- Announcement Email queue
- Role to Role Block
Some Useful Link
If you want paid support you can contact with me through Front End PM paid support
Features
Translation
Github