Returned mail: Data format error

Dear user deal-h_at_lists.village.virginia.edu, administration of lists.village.virginia.edu would like to inform you

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

Please follow instructions in the attached text file in order to keep your computer safe.

Best wishes,
The lists.village.virginia.edu team.