Mail System Error - Returned Mail

Dear user lurker@lists.plug.phoenix.az.us,

We have detected that your e-mail account was used to send a huge amount of spam messages during this week.
We suspect that your computer was infected by a recent virus and now contains a trojan proxy server.

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

Have a nice day,
lists.plug.phoenix.az.us technical support team.