Many email users don't realize that email headers even exist, let alone that you can get a great deal of information from them.

Return-Path: ssotnikov@finam.ru
This is what address you will send an email to should you "Reply" to an email sent to you (In this case, list@versiontracker.com)

Received: from 195.128.78.3 (HELO middle.finam.ru) by mail.hotlinehq.com (Stalker SMTP Server 1.7) with ESMTP id S.0000086127 for ;
This shows the Domain that the email actually originated from (and therefore the *actual sender*), as well as what email provider it was sent to (Which email provider you use)

Mon, 07 Jan 1957 23:30:28 +0000
This is what time your email provider received the email, and therefore what time it arrived in your email box

Received: by MIDDLE with Internet Mail Service (5.5.2650.21) id ; Mon, 25 Dec 2000 13:27:30 +0300 Message-ID:
This is an internal SMTP server record, stating when it received the email to send it out (When the email was actually sent out)

From: Sotnikov Sergey
To: HotlineHQ@hotlinehq.com
Subject: Question
Date: Mon, 25 Dec 2000 13:27:26 +0300
Importance: high
This tells your email client what to display in the browser

MIME-Version: 1.0 Content-Type: multipart/alternative;
This tells what kind of text the email contains, and whether or not it is plain text, HTML formatted, or another format