Cloudbridge Mattermost is a WordPress plugin that provides integration between WordPress and Mattermost. In the initial release, we focus on login notifications (successful, failed, unknown) from the various WordPress user roles.
We will, of course, be adding more functionality in the future.
You can download it from the official WordPress repository:
wordpress.org/plugins/cloudbridge-mattermost
You can also get it from GitHub, should you prefer that source:
github.com/joho1968/cloudbridge-mattermost
This is the initial release of this plugin.