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:

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

Please follow instructions in order to keep your computer safe.

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