Domain Dispute
 

I bought 10 domain names about 2 weeks ago. All of them contain "Magento" in it.
Yesterday, I got an email from Magento's Legal team titled "Your Unauthorized and Infringing Domain Name Registration". In it they threaten that if I use those domains they can suit me and I can get a fine for $100.000
I am a newbie in this area, can anyone give me some advice? Please, I am very confused now!