Hi Community,
Update- I just heard from our technical team regarding this matter and it appears that the option to enable/disable this setting in your account preferences will be added to the Auctiva website tomorrow. We aren't going to actually start sending out those emails until about 2 weeks after that, and we will include the date those will start being sent out in the "New Features" email we will be distributing before then.
If you have any additional questions or concerns, please feel free to contact our customer support by completing the web form on the following page of our site: http://www.auctiva.com/help/requesthelp.aspx
-Mike