You can limit who uses business e-mail — Business Management Daily: Free Reports on Human Resources, Employment Law, Office Management, Office Communication, Office Technology and Small Business Tax Business Management Daily
Enforce a policy that all e-mail at work must relate to relevant business communication. The case: An ex- Intel employee sent between five and seven e-mails to about 30,000 current employees.
He wrote that the firm’s personnel policies were unfair and abusive. The company asked the court to order him to stop sending e-mail to employees at their company addresses; the writer argued that the messages were protected by freedom of speech laws.
The court said the use of the company’s e-mail system and internal employee address list for nonbusiness purposes amounted to an unlawful trespass. (Intel Corp. v. Hamidi, No. 98-AS-05067, Ca. Super.Ct., 1998)