When you provide your e-mail address to JRiver, whether through a download or a purchase, we add you to our mailing list. We mail to this list every month or so, to discuss new features, new versions, and occasional tips. This e-mail has an unsubscribe link.
To remove yourself from our mailing list, please visit this page: http://jriver.com/unsubscribe.html
You can change the e-mail address associated with your license. It's option 3 on the Restore Page.