Hi @Justin Oberle ,
IoT Hub has no build in "per device" throttling or configurable throttling. Thus, you need to build your custom solution to block devices in IoT Hub or prevent them sending more messages than intended. this can be either done via custom logic in the cloud observing the number of messages per device and controlling the device's status "enabled/disabled" in the device registry or within the device's client code by maintaining a message counter and deactivate sending within a specific time.
Please see also a previous question iot-hub-limitation-of-the-number-of-messages-sent.html
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