You can unsubscribe from the emails you receive from Nine by either clicking the unsubscribe link at the bottom of the email received
By logging into your Nine Account and visiting your Email Preferences page:
Step 1: On 9now.com.au, make sure you are logged in, then click on your name and then 'My Profile' from the drop-down menu.
Step 2: Select 'Email Preferences', then adjust your email preferences as desired. When finished click on the 'SAVE' button.