We never meant to make that widely public which is why we made a public FAQ for it
Microsoft was, and maybe still is, considering injecting targeted adverts into the Windows 10 Mail app.
For a few, er, lucky folks, ads would appear at the top of their inboxes, they were using the client without a paid-for Office 365 subscription. The advertising would be tailored to their interests. Revenues from the banners were intended to help keep Microsoft afloat, which banked just $16bn in profit in its latest financial year.
According to Aggiornamenti Lumia on Friday, beta testers using Windows Insider fast-track builds of Mail and Calendar, specifically version 11605.11029.20059.0, may have seen the ads this month in among their messages, depending on their location. Users in Brazil, Canada, Australia, and India were chosen as guinea pigs for this experiment.
A now-deleted FAQ on the Office.
