Champs Header: ``` - From, showing the sender's email address - To, showing the recipient's email address - Date, showing the date when the email was sent. ``` Champs optionnels: ``` - Received, showing various information about the intermediary servers and the date when the message was processed - Reply-To, showing a reply address - subject, showing the message's subject - message-ID, showing a unique identification for the message - message body, containing the message, separated from the header by a line break ``` Artefacts: ``` - Sending Address - Subject Line - Recipient(s) - Date and Time - Sending Server IP - Reverse DNS of Sending Server IP - Reply-To (if present) ```