Subject: Undelivered Mail Returned to Sender
From: [email-masked] (Mail Delivery System)
To: [email-masked]
Date: Mon, 22 Mar 2010 14:45:36 +0000 (GMT)

This is the mail system at host server2.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]>: message size 8596800 exceeds size limit 5242880 of
    server mail9.d.e[216.185.34.5]