Since there is a abundance of clever techheads here, I figure I would
ask you fine folks. I received a email today and noticed the following
within the email;

Subject: Re: free beer
Date: Wed, 27 Jun 2007 11:12:36 -0400
From: Tom Booger <>
To: jack <>
CC: Jane Rone <>, Dan Lumberjack, pat string
<>, Ted Levi <>,
References: <d79052d0706251711r75fafde0vcdaea9aa03d53336@mail.>

Now the question: what exactly do the last 4 lines mean, starting with
References? Unique identifiers?

Ted Novak