Automatic emails that a site is down

Over the weekend I received over 1,000 emails saying a certain multisite http://elementenergyadvisors.net is down. I'm continuing to get them. It is saying that http://eea.energy/ is having a request timeout. This site is in our network but getting over 1,000 emails is a little daunting. I have checked the site and it is working. Trying to see where I can stop receiving these emails. Thanks