[tinus_hn]

So you registered multiple domains and the first thing you decided to do with them was check if they are on Spamhaus? Such a coincidence that you would find out they all are!

You may have bought domains that were used for spamming before you had them. If so, you can contact Spamhaus to be removed from the list. It'd be a better use of your time to just get new, non tainted names, because if Spamhaus is listing them so are many others.

Realistically it's more likely though that you yourself are the spammer. For instance, you bought some new domains, started blasting out emails advertising them and found out your mails got blocked for spamming. There is no solution for that apart from stopping spamming.