The "New Outlook" demands that when adding your #Gmail account, you also give Microsoft a copy of all your Gmail email, contacts, and calendar data.
The "Learn More" link confirms:
"Syncing your account to the Microsoft Cloud means that a copy of your email, calendar, and contacts will be synchronized between your email provider and Microsoft data centers."
WOW.
Good time to switch to @thunderbird, folks!
@killyourfm @thunderbird Your personal data is the new oil.
@gerowen @killyourfm @thunderbird Whether you use Gmail or Outlook ;-)