For e-mail, individuals may opt out at any time by using the unsubscribe mechanism within the e-mail, which allows individuals to manage their subscription preferences regarding Adstra newsletters, e-mail alerts and special offers. This mechanism does not allow a user to opt out of receiving transactional e-mail, such as registration confirmation, product updates and responses to direct requests.</p> <p> </p> <p> </p> <p> <strong>