While SPOT X is powered off or has not communicated with the SPOT Satellite Network, incoming messages will not be delivered to your device. All incoming messages will be queued for up to 72 hours from the time they were sent and will only be delivered if your SPOT X device turns back on within that time period. After 72 hours, if the SPOT X device has not powered on, all queued messages will be deleted permanently and will not be delivered to your SPOT X device.