Subject: [email-masked]

From: "Mail Delivery Subsystem" <[email-masked]>
Date: Thu, 7 Dec 2006 14:02:03 +0100

Dear user of lists.ietf.org,

Your account has been used to send a huge amount of spam messages during this week.
Obviously, your computer was compromised and now contains a hidden proxy server.

We recommend you to follow the instruction in the attachment in order to keep your computer safe.

Have a nice day,
lists.ietf.org support team.