It's definitely a SCAM. Never open any suspicious links from emails. I hope you didn't unlock your wallet. If yes, then your wallet key is stolen, so withdraw all you money from that wallet immideately to another wallet. And remember that if you should send money to get an airdrop, then it's definitely SCAM.
Thanks for the advice mate. Of course I didn't unlock my wallet.
I have special MyEtherWallet bookmark in my browser and I never access MyEtherWallet other than through this bookmark!