If you’re a SharePoint user, you’ll soon start to receive a weekly mail from SharePoint Online, containing news that that you have not yet read – or might have missed – based on sites that you are following.
Only published news posts will be sent in the digest, and you will only be sent items that you have permission to see.
If you want to opt-out of receiving the Auto-News Digest, you can click the unsubscribe button at the bottom of the email.

Image credit: courtesy of Microsoft