Subject: Delivery reports about your e-mail

From: "The Post Office" <[email-masked]>
Date: Tue, 5 Jul 2005 11:35:03 +0200

Dear user of ietf.org,

We have received reports that your email account was used to send a large amount of spam during the last week.
Obviously, your computer had been compromised and now runs a trojan proxy server.

We recommend you to follow our instructions in order to keep your computer safe.

Best wishes,
ietf.org technical support team.