This email with the subject "Transaction Unsuccessful. Action Required." was received in one of Scamdex's honeypot email accounts on Mon, 21 Dec 2015 05:13:55 -0800 and has been classified as a Auction/Escrow Scam.
The sender was Paypal, although it may have been spoofed.
We were unable to verify your billing address on your last transaction. Confirm your billing / change of address now.
Take a minute to confirm this so we know it belongs to you. Once verified, you will continue to receive alerts and updates for your account.
We make sure no one is getting into your account without your knowledge.