From: "Sender" <sender@sender.com>
To: "Receiver" <receiver@receiver.com>
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: base64
MIME-Version: 1.0

PCFET0NUWVBFIEhUTUw+CjxodG1sPjxib2R5PmJvbyE8L2JvZHk+PC9odG1sPg==
.