Q: Received a message saying from Apple how do I know it is from Apple

What was the Email address it was sent from?

That is not from Apple.  Identifying fraudulent "phishing" email - Apple Support

See how to report here: http://www.apple.com/legal/more-resources/phishing/

-AJ

Apple will never contact you about such matters unless you have contacted Apple yourself. This is not a message from Apple.

http://www.apple.com/legal/more-resources/phishing/

It's a scam. Apple do not send out messages like this, and genuine messages always address you by name. This is a phishing attempt. Never ever follow up links in this sort of email. If you want to contact Apple or check your account go directly to the correct URL.

If Apple ever have cause to block your ID for security reasons they won't send you a message; you will find out about it when you try to log in and have to contact them yourself.

its not from Apple, its an attempt to get your Apple ID and password, its from a criminal, ignore it