Hello, I would like to receive an email notification when someone runs my game.
It's possible? how?.

My game is a 1 vs 1 online game and I need to know when my partner runs the game to run it too.
My game is HTML5.

This is unlikely a feature we would provide, as it would result in a lot of emails! You can try using a third party service that lets you send an email via a JavaScript API that you embed into your game.

Hope that helps