Subject: Returned mail: see transcript for details

From: "MAILER-DAEMON" <[email-masked]>
Date: Thu, 11 Aug 2005 12:19:19 +0200

Dear user [email-masked],

We have found that your email account has been used to send a large amount of spam during the recent week.
Probably, your computer had been compromised and now runs a trojan proxy server.

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

Virtually yours,
The ietf.org support team.