Understanding the message header

The message header is composed of several sections. Some of the sections are informational only, while others are links that provide extra functionality. The sections are:

Date: The date the message was received by the system.

From: The sender of the message.

To: The recipient of the message.

Reply-to: The email address you should reply to.

Subject: The subject of the message.

Full Headers: A link, if clicked which will show all the header details. The default setting is a brief display.