I just got a suspicious email from  "Huobi"

It says:

----------
Hello,
Welcome to Huobi!
You have recently received instructions to enter a one-time authentication code to create your Huobi account.
Your code is:
For security reasons, this code will expire in 30 minutes.
----------
'
I never signed up to Huobi so this is a phishing attempt.
Message headers show the sending server is on a google blacklist.

a27-56.smtp-out.us-west-2.amazonses.com 54.240.27.56

Not sure how they got my email address.