Approaches for automatically and dynamically changing message classification and priority based on Internet-Of-Things (IOT) device publication are provided. A computer-implemented method includes: receiving, by a computer device, a device status message from an Internet-of-Things (IOT) device; receiving, by the computer device, a message from a message server; assigning, by the computer device, a priority to the message based on the device status message from the IOT device; and communicating, by the computer device, the assigned priority of the message to the message server.