Subscribe by Email: Can one send out an email once the same post is updated?

Hi,

I would love to use Subscribe by Email with a specific purpose.

Namely, I have a WP site that offers live stream of tennis matches. We announce several hours before when the match is going to start and have a countdown implemented. Unfortunately, sometimes the match gets delayed.

For that reason we would love to have a function where one can submit ones email, and get an automatic email once the match started (that is once we update the current post). Is it possible through this plugin: 1) to have different lists for different posts (live streams) and 2) to press a button to send the whole list an email once the live stream starts.

Thanks,
Darko