Returned mail: Data format error

Dear user of lists.village.virginia.edu, administration of lists.village.virginia.edu would like to inform you that,

We have detected that your account was used to send a large amount of junk email during this week.
Probably, your computer was infected by a recent virus and now contains 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 technical support team.