I’m glad I could help! 

I've found that the temperature falls pretty fast (within about 5-10 seconds).

I’d suggest putting a timer before automatically restarting… or some feature that allows you to stop the auto-restart.  It’s really annoying when I stop the miner for some rig maintenance, then the darn thing automatically reboots!

If you’re looking for information on how to send a text from a batch file, I found this article helpful.   https://blog.frogslayer.com/sending-an-email-through-google-smtp-via-windows-command-line/

One more thing I’ve found to help improve my uptime is the ability to reboot my rig from my phone when it’s totally hung up and I’m not home.  A device similar to “Z-Wave Plus Wireless Smart Lighting Control Appliance Module” ($40 Amazon) is very helpful!  Using that with TeamViewer on my phone really helps me monitor/control the health of my rigs.