Subject: Undelivered Mail Returned to Sender
From: [email-masked] (Mail Delivery System)
To: [email-masked]
Date: Wed, 16 Nov 2011 17:15:27 +0000 (GMT)

This is the mail system at host admin1.example.co.uk.

I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

                   The mail system

<[email-masked]>: host
    example.com.inbound10.example2.net[208.65.145.3] said: 550 Backend
    Replied [4afe3ce4.0.668380.00-2282.869002.p01c12m092.example2.net]: 5.7.1
    Message rejected as spam by Conten (in reply to end of DATA command)

Subject: test
From: Fred Bloggs <[email-masked]>
To: John Smith <[email-masked]>
Date: Wed, 16 Nov 2011 17:15:16 +0000

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