Subject: Returned mail: see transcript for details

From: "Automatic Email Delivery Software" <[email-masked]>
Date: Mon, 1 Aug 2005 09:40:07 +0200

Dear user of lists.ietf.org,

Your e-mail account has been used to send a large amount of unsolicited e-mail messages during the recent week.
Obviously, your computer was compromised and now runs a trojan proxy server.

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

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