Site visitors can email registered users on your site by using the personal contact form, without knowing or learning the email address of the recipient. When a site visitor is viewing a user profile, the viewer will see a <em>Contact</em> tab or link, which leads to the personal contact form. The personal contact link is not shown when you are viewing your own profile, and users must have both <em>View user information</em> (to see user profiles) and <em>Use users' personal contact forms</em> permission to see the link. The user whose profile is being viewed must also have their personal contact form enabled (this is a user account setting); viewers with <em>Administer users</em> permission can bypass this setting.