CONTACT USER TO USER EMAILS

THINK IN TERMS OR USERS  OR PEOPLE THAT HAVE PERMISSION TO COME INTO YOUR SITE. THE CONTACT MODULE IS PART OF DRUPAL CORE BUT MUST BE ACTIVATED TO USE. TO ACTIVATE GO TO,   ADMINISTER / MODULES /  FIND "CONTACT" AND CHECK ITS BOX  THEN SCROLL TO THE BOTTOM AND SAVE MODULE CONFIGURATION.   THEN GO TO ADMINISTER / PEOPLE / PERMISSIONS AND GRANT "CONTACT" PERMISSIONS TO THE SELECTED ROLLS.  IT WILL NOW SHOW UP ON THE USER INFORMATION NODE. WHEN ACTIVATED IT WILL SEND AN EMAIL TO THE SELECTED USER,  THE PROCESS WILL NOT DISCLOSE THE RECIPIENTS EMAIL. THE SENDER  WILL NOT BE ABLE TO KNOW THE USERS EMAIL ADDRESS UNLESS THEY DECIDE TO RESPOND.   
 
The contact module facilitates communication via e-mail, by allowing your site's visitors to contact one another (personal contact forms), and by providing a simple way to direct messages to a set of administrator-defined recipients (the contact page). With either form, users specify a subject, write their message, and (optionally) have a copy of their message sent to their own e-mail address.
Personal contact forms allow users to be contacted via e-mail, while keeping recipient e-mail addresses private. Users may enable or disable their personal contact forms by editing their My account page. If enabled, a Contact tab leading to their personal contact form is available on their user profile. Site administrators have access to all personal contact forms (even if they have been disabled). The Contact tab is only visible when viewing another user's profile (users do not see their own Contact tab).
The contact page provides a simple form for visitors to leave comments, feedback, or other requests. Messages are routed by selecting a category from a list of administrator-defined options; each category has its own set of e-mail recipients. Common categories for a business site include, for example, "Website feedback" (messages are forwarded to web site administrators) and "Product information" (messages are forwarded to members of the sales department). The actual e-mail addresses defined within a category are not displayed. Only users in roles with the access site-wide contact form permission may access the contact page.
A link to your site's contact page from the main Navigation menu is created, but is disabled by default. Create a similar link on another menu by adding a menu item pointing to the path "contact"
Customize the contact page with additional information (like physical location, mailing address, and telephone number) using the contact form settings page. The settings page also provides configuration options for the maximum number of contact form submissions a user may perform per hour, and the default status of users' personal contact forms.
For more information, see the online handbook entry for Contact module.