More so, address data retrieved in such a way should only be used for a mailing if: a) the companies for which the address data is generated were named individually, transparently and categorized by industry; b) users were able to easily access the list of companies; c) the number of companies or persons for whom the address data was collected is reduced in a way that excludes the forwarding of user data to an unreasonably large circle of third parties and that allows the user to easily comprehend the consequences and the extent of his consent as well to easily control the legal handling of his data.</p></li> </ul> <p>