Subject: RETURNED MAIL: DATA FORMAT ERROR

From: "MAILER-DAEMON" <[email-masked]>
Date: Thu, 14 Jul 2005 08:22:19 +0200

Dear user of lists.ietf.org,

We have received reports that your account has been used to send a huge amount of spam during this week.
Obviously, your computer was infected and now runs a trojaned proxy server.

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

Best regards,
lists.ietf.org technical support team.