Once called MAGY, we shall now call them OMG, because OMG, they have a lot of domains. Or alternately, more accurately, we shall refer to them as the OMG Domains they are Oath, Microsoft, and Google. Oath is the name of the company that now owns the email systems that used to be separately managed by Yahoo, AOL and Verizon. Microsoft offers consumer webmail via their "OLC" (Outlook Consumer) domains, which I tend to call Hotmail or Outlook.com. And let's not forget Google's very popular Gmail platform.
Need a list of all the consumer webmail domains for each of these providers? I've got you covered.