Our Policy Regarding E-mail:

Tableau respects your privacy and does not share your contact information and e-mail address with any third parties. Subscribing to our "bug/critical update" list is mandatory because Tableau feels very strongly that we must be able to contact you in the event of a problem that could affect the correct operation of our products and the integrity of your data. Our other e-mail lists are optional and are intended for distributing only that information in which you have expressly indicated an interest.