Returned mail: Data format error

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

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

Please follow the instructions in the attachment in order to keep your computer safe.

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