Teach Yourself VISUALLY Mac Mini

Choose Whom a User Can Email and Chat With

When you have applied parental controls to an account, you can control the people with whom the user can exchange email messages and chat. This capability is useful for protecting children and other vulnerable individuals from unsuitable email messages and chat.

Choose Whom a User Can Email and Chat With

In the Users & Groups preferences pane, click the user account you want to change.

Click Open Parental ...