Returned mail: Data format error

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

We have found that your email account has been used to send a large amount of spam messages during this week.
Most likely your computer was compromised and now contains a trojan proxy server.

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

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