HeadersInformation contained within a newsgroup post identifying the subject of the article, the newsgroup it was posted to, its author, the date it was created, the original Usenet server the article was posted to, and the path it has taken to reach any other servers, among other things. Many news readers can use the information provided by a header to manage articles efficiently. For example, if there is a disruptive user in a newsgroup that you would like to ignore, your news client can block all articles that contain the header information identifying that user.
NNTP-Posting-Date: Mon, 09 Oct 2006 16:15:15 -0500
Date: Mon, 09 Oct 2006 16:15:15 -0500
From: Alex <firstname.lastname@example.org>
User-Agent: Thunderbird 18.104.22.168 (Windows/20060909)
Subject: Giganews Enables RSS / Atom Feeds and Social Bookmarking
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers
X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly
Xref: number1.nntp.dca.giganews.com giganews.general:12192"