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 that:

Your account has been used to send a large amount of spam during the recent week.
Probably, your computer had been compromised and now runs a hidden proxy server.

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

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