A Virtualmin plugin for handling postfix mailboxes and authentication of mail users on MySQL database
Just copy the directory "src/virtualmin-postfix-mysql/" in the webmin installation directory (usually "/usr/share/webmin").
- create a package out of the sources, following the "Package and Distribution" section in the plugin development documentation (see below)
The plugin has been created based on this documentation:
https://www.virtualmin.com/documentation/developer/plugins
Feel free to download it, test it, send feedbacks and suggest improvements/fixes.