Further, you may not promote any commercial activity using University resources. You may not use the network, labs, etc., to run or promote a business. All complaints will be investigated. Violations will result in disciplinary action. Ignorance is no excuse.
Guidelines are available.
Read them, and ask if you're at all uncertain about something. Do not send rude or harassing e-mail. If someone asks you to stop sending mail, then stop sending it. If you fail to do so, the person can file a complaint and you can be disciplined. If you ever feel that you are being harassed, the university will assist you in filing a complaint.