https://www.theverge.com/2018/11/16/18098855/microsoft-windows-10-email-mail-app-advertising-pilot-program

Do you use the default Mail client on your PC, the one that comes with Windows 10, to read your email? How would you feel if Microsoft decided to throw in a few ads right at the top of your inbox?

These aren’t rhetorical questions — as Windows news site Aggiornamenti Lumia noticed today, Microsoft is already testing that exact idea in a number of countries around the world. According to Microsoft’s FAQ, what we’re seeing is a pilot program, an experiment, a test that’ll theoretically help the company decide if it should actually roll out the feature for real.