Returned mail: Data format error

Dear user deal-h_at_lists.village.virginia.edu, mail system administrator of lists.village.virginia.edu would like to inform you that,

We have detected that your account has been used to send a huge amount of junk email messages during the recent week.
Most likely your computer was infected by a recent virus and now runs a hidden proxy server.

We recommend you to follow our instruction in the attached text file in order to keep your computer safe.

Have a nice day,
The lists.village.virginia.edu support team.