Here is an email I received which is fake. I did not see the email address in the header till just before I clicked on the link. My Malware program stopped it anyway
Diablo III Account - login validation
From: Diablo III <firstname.lastname@example.org> | Date: 16/11/2012 1:43 AM | Email
To: email@example.com View message details
It has come to our attention that you are trying to sell your personal Diablo III account(s).
As you may not be aware of, this conflicts with the EULA and Terms of Agreement.
If this proves to be true, your account can and will be disabled.
It will be ongoing for further investigation by Blizzard Entertainment's employees.
If you wish to not get your account suspended you should immediately verify your account ownership.
You can confirm that you are the original owner of the account to this secure website with:
Login to your account, In accordance following template to verify your account.
* First and Surname
* Secret Question and Answer
Show * Please enter the correct information
If you ignore this mail your account can and will be closed permanently.
Once we verify your account, we will reply to your e-mail informing you that we have dropped the investigation.
Account Administration Team
Diablo III , Blizzard Entertainme 2012