The routing information in a mail message that determines its destination and identifies the sender. Some of this information is supplied by the user and some of it is generated by the system.
A portion of the e-mail message (usually hidden from the recipient) containing information about the origin and transmission route of an e-mail message.
That part of a message that contains control information about the message such as the message creator and message type, the total length of the message, the time it was submitted, addressing information, and so forth.
a collection of information about the message -- a technical-looking explanation of where it came from, where it's going, places it visited along the way and more
The information at the beginning of an email or bulletin board message. Message headers contain the identities of the author and recipients, the subject of the message, and the date the message was sent.
The routing directions that control where a message is posted and who it was sent by.
Information at the top of an e-mail which says who sent it, where it came from, what path it took together with time-stamping information. This information can be used to track the message as it was sent from computer to computer across the Internet and identify the senders of bulk unsolicited email, known as spam.
the information used to deliver an email message, including the To, From, Date, and Subject fields.