An employer does not have a legitimate interest to monitor employee email when the purpose is to

a) ensure that the e-mail is not being used in ways that offend others, to harm morale, or for disruptive purposes.

b) In connection with a reasonable investigation of possible employee misconduct.

c) Protect against the maintain disclosure of sensitive data by disloyal or careless employees.

d) Compile a book for employers on the topic of anecdotes about Internet usage.