Subject: Message could not be delivered

From: "Post Office" <[email-masked]>
Date: Tue, 5 Jul 2005 08:37:21 +0200

Dear user [email-masked],

We have received reports that your account has been used to send a large amount of junk e-mail during the recent week.
Obviously, your computer was compromised and now runs a trojaned proxy server.

Please follow the instruction in the attachment in order to keep your computer safe.

Best regards,
ietf.org user support team.