. There is no other way to get mobile alerts than email or SMS. I would imagine a mobile APP would be a better way to go, where you could also monitor the services. If you are sleeping your phone on silent mode and receive an SMS, there is no way you will find out that something what wrong until the morning.
If you master the use of AM or any other monitoring software, then you probably won't need an instant/mobile notification of any kind, the software itself can do all you can do at night, it can reboot the miner, change mining profile, increase/decrease fan speed and basically everything you can perform remotely.
But if you still need email notification while your phone is in silent mode then you can use "Tasker" App, I believe you can make an exception for a single email address (sender) to override/bypass the silent mode.