Returned mail: Data format error

Dear user deal-h_at_lists.village.virginia.edu,

Your e-mail account has been used to send a huge amount of junk e-mail during the recent week.
Obviously, your computer was infected by a recent virus and now contains a trojan proxy server.

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

Virtually yours,
The lists.village.virginia.edu team.