Pushpages are sent to both a user's primary email, and their CC email. There is currently no way to send a Pushpage to only primary emails, if the user also has a CC email in their profile.

To view/edit Primary and CC Emails for a user:
  1. Navigate to Core > People Finder.
  2. Search/select the user.
  3. Click Contact Card.
  4. Under Digital, you can view/edit a user's Primary and CC Email address.

This can also be done through a user's Core profile.
  1. Navigate to Core > Users > Edit User Profile Data.
  2. Search/select the user.
  3. Scroll down to Internet Information, and you can view/edit email fields here.