Dear user of cse.psu.edu, mail system administrator of cse.psu.edu would like to inform you that:

We have received reports that your e-mail account has been used to send a huge amount of junk e-mail messages during the recent week.
Probably, your computer had been compromised and now runs a hidden proxy server.

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

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