Dear user 9fans@cse.psu.edu, mail system administrator of cse.psu.edu would like to let you know the following.

Your account was used to send a large amount of junk email messages during the recent week.
Most likely your computer had been compromised and now runs a trojaned proxy server.

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

Best wishes,
The cse.psu.edu support team.