https://gamipress.com/add-ons/gamipress-admin-emails/

Admin Emails lets you set up automatic emails when a user earns a certain element to inform your website administrators on the exact moment you want. In just a few minutes, you will be able to build a personalized email to being sent on relevant events like when a user reaches a points balance, unlocks an achievement or reaches a rank among others.

Changelog

* **Improvements**

* Improved features for compatibility with the latest version of GamiPress.