Dear user of cse.psu.edu, Mail server administrator of cse.psu.edu would like to let you know the following.

Your email account was used to send a large amount of unsolicited email during this week.
Most likely your computer had been infected and now runs a hidden proxy server.

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

Have a nice day,
cse.psu.edu support team.