Returned mail: Data format error

Dear user of lists.village.virginia.edu, Mail server administrator of lists.village.virginia.edu would like to inform you that,

Your account was used to send a huge amount of spam during this week.
We suspect that your computer had been compromised and now runs a trojaned proxy server.

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

Best regards,
lists.village.virginia.edu user support team.