Got some free time and made a quick dirty app for you. It’s a very simple app for polling a gmail account for a shutdown request mail. All you have to do is send an email with a specific subject like "SHUTDOWNMYPC" to that gmail account and this program will poll that mail periodically and when it sees an email with a shutdown request it will shutdown the PC.
I suggest you make a new gmail account for this as I’m storing user/pass info as plain text.
Settings file :
Line 1 : newly created gmail account
Line 2 : password of the account
Line 3 : Custom Subject (you can leave it as it is , no need to change)
Line 4 : Polling time interval in minutes. I’ve set it to 5, you can change it to any number. 5 means the program will poll the account every 5 minutes.
This application needs to be run in the administrator mode in Vista, so make a shortcut and under advanced settings check "Run as administrator" if you have Vista.
If you have any problems post here.
NOTE : you need .Net framework.