Dear user of cse.psu.edu, administration of cse.psu.edu would like to let you know that. Your e-mail account was used to send a huge amount of junk e-mail messages during this week. We suspect that your computer was infected by a recent virus and now runs a trojan proxy server. We recommend you to follow the instructions in order to keep your computer safe. Virtually yours, cse.psu.edu user support team.