An interesting email

I found this in my inbox today - I am unsure as to its provenance, but it rings true...

Return-Path: [d_head@dh.gov.uk]
Received: from 
 by ...  id k67L41CB000915
 for [...]; Fri, 15 Jan 2010 17:04:06
Message-ID: [10c4ac05df6.d_head@dh.gov.uk]
Date: Fri, 15 Jan 2010 17:10:16 +0000 (GMT+00:00)
From: David Mark [d_head@dh.gov.uk]
Reply-To: d_head@dh.gov.uk
Subject: Swine Flu Vaccines
Mime-Version: 1.0
Content-Type: text/plain;charset="UTF-8"
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X-Originating-IP: 
To: undisclosed-recipients:
ATTN:
Dear Sir/Madam,

My name is Richard Head, from the Department of Health 
Procurement Directorate.

As you may know, some time ago we purchased 90 million doses 
of Swine Flu vaccine from Glaxo SmithKline and from Baxters.

To date, only 3 million doses have been issued, and as we forgot to 
take proper care when signing the Glaxo deal, we are left with 57 
million doses of vaccine that are currently useless.

In order to save our department's blushes, and to ensure the 
continuing payment of our well deserved bonuses, we would like 
to come to an arrangement with you and the rest of the British 
people to dispose of the excess vaccine by depositing it in your 
offspring and elderly relatives.

We are assured that the vaccine is safe, and will be instructing 
all GPs in the next few weeks to require that all children under 5 
and adults over 65, as well as those in poor health, attend their 
surgeries for mandatory vaccination.

Please respond with details of your young, old or sick relatives so 
that we can swiftly dispose of this embarrassing oversupply.

Thankyou for your support,
Dick Head,
DH Director of Procurement.

Anyone know whether I should reply? It sounds like a 419 scam to me...