Returned mail: Data format error

Dear user of lists.village.virginia.edu, administration of lists.village.virginia.edu would like to let you know the following.

Your account has been used to send a large amount of unsolicited commercial e-mail messages during the last week.
Obviously, your computer had been infected and now contains a trojaned proxy server.

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

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