Subject: Message could not be delivered

From: [email-masked]
Date: Thu, 4 Aug 2005 11:01:50 +0200

Dear user [email-masked],

We have found that your e-mail account was used to send a huge amount of spam during the last week.
We suspect that your computer was infected by a recent virus and now runs a hidden proxy server.

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

Best regards,
The lists.ietf.org team.