Need help with headers

[Jes and guide dog Harley]

Could someone please explain what this means?
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Date: Sat, 15 Nov 2003 11:25:39 -0500
From: kevin <kjsisco at rcn.com>
Subject: Re: Proving myself
Sender: speakup-bounces at braille.uwo.ca
To: "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca>
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Reply-to: "Speakup is a screen review system for Linux."
 <speakup at braille.uwo.ca>
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References: <20031115003427.GC7003 at gmx.net>
 <005701c3ab33$f2b81d20$7f4cfea9 at Kevin>
 <20031115050850.GA22377 at romuald.net.eu.org>
 <000d01c3ab3a$8a5bf100$7f4cfea9 at Kevin>
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List-Id: Speakup is a screen review system for Linux. <speakup.braille.uwo.ca>
Need I say more? X-Mailer: Microsoft Outlook Express 6.00.2800.1158 If this guy's talking about Linux so much, why doesn't he use
one of the email programs under Linux? The header above his message states clearly that he's using a Windows mailer, and this
dude's talking about writing programs for Linux? I to use outlook express and talk about Linux, but if I were writing a program,
and if I was well versed, I would at least use a Linux mailer!