I got an email from [email protected] -- is that a phising email?

Apple will always address you by your name or the name they have on file for younot Dear CustomerDear Client or by using your e-mail address.  The e-mail will be from @apple.com or @iTunes.com. E-mail addresses can be spoofed. You can go to Mail/View/Message/Show all Headers to see more. Apple emails won't have poor grammar/misspellings. Apple e-mails will never contain an attachment. Apple will never request personal information by email such as Social Security numbersyour Mother’s maiden name or full credit card numbers . 

The only exception to the above I have noticed is if you order something from the Apple Store (apple.com)your receipt will be addressed to Dear Apple Customer. That is a receipt for a purchase you initiated.

ASC YouTube for How to Identify Phishing 

Identifying legitimate emails from the iTunes Store.   *

Yesthat is legitimate. Important things to note areApple will never ask you to reply to the email. If you receive something similar to thatit's almost always a scam.

To be safe thoughnever click on links or attachments from any email. If you received an email to change your passwordnavigate directly to that website instead of clicking on the link.

Recognize and avoid phishing messagesphony support callsand other scams - Apple Support

I hope this helps!