Koelnmesse Help (FAQ English) General information Your Koelnmesse Account I do not wish to be contacted by Koelnmesse any longer. What do I have to do? I do not wish to be contacted by Koelnmesse any longer. What do I have to do? If you no longer wish to be contacted by us for promotional purposes, please send a message to datenschutz-km@koelnmesse.de. ×