Eco directive for permissible e-mail-marketing : guidelines for practical use : updated worldwide opt-in/opt-out-list! ; valid for D A CH / eco, Association for the Internet Industry ; edited by CSA, Certified Senders Alliance ; authors Dr. Torsten Schwarz (owner of Absolit Consulting und Email-Marketing-Forum.de, https://www.absolit.de), Christian Schmoll (lawyer, g3s lawyers, www.g3s.legal, senior legal counsel, Sprinklr, Inc., www.sprinklr.com), Lukas Bühlmann (lawyer and partner, Bühlmann Lawyers Inc., http://www.br-legal.ch), Tamino Chochola (Stadler Völkel Lawyers Inc., www.svlaw.at), Dr. Arthur Stadler (lawyer, Stadler Völkel Lawyers Ltd., www.svlaw.at), Martin Bucher (managing director, Inxmail GmbH, www.inxmail.de), Dr. Jens Eckhardt (specialist lawyer for information technology law, data protection auditor (TÜV), www.derra.eu), Christan Solmecke (lawyer and partner, Wilde Beuger Solmecke lawyers, www.wbs-law.de), Annika Dam (lawyer, Wilde Beuger Solmecke lawyers, www.wbs-law.de), Ivo A. Ivanov (lawyer and general corporate counsel, eco Association), Rosa Hafezi (lawyer, professional services division, eco Association), Alexandra Koch-Skiba (lawyer, head of complaints office, eco Association), Qadir Rostamzada (Marketing & Business Development, eco Association)