UConn users with an Office 365 license will receive daily briefing emails from Cortana@microsoft.com. If you do not wish to receive these emails, you can opt out so you will not receive them in the future.
Open up your daily briefing email that was sent by cortana@microsoft.com
Scroll to the bottom of the email, and select Unsubscribe.
In the page that opens, bubble in the answer you agree with most and click Submit.
If you wish to re-subscribe at any point, you can do so by going to briefing.microsoft.com/.