usa la clase phpMailer que es facil de manejar
   Código PHP:
    
<div class="Contact">
                    <form name="Contact" method="post" action="'.ROOT_PATH.'include/htdos/prosForm.php">
                        <div class="header">
                            <div class="field">
                                <div>Nombre:</div>     <INPUT type="text" name="nombre" class="Contact">
                            </div>
                            
                            <div class="field">
                                <div>Email: </div><INPUT type="text" name="email" class="Contact">
                            </div>
                            
                            <div class="field">
                                <div>Teléfono: </div><INPUT type="text" name="telefono" class="Contact">
                            </div>
                            
                            <div class="field">
                                <div>Asunto: </div><INPUT type="text" name="Subjet" class="Contact">
                            </div>
                        </div> <!-- /header -->
                        
                        <div class="DataEntry">
                            
                            
                            <div class="Area">
                                
                                <div class="menu">
                                    '.newsMenu('').'
                                </div>
                                <div class="text">
                                    <TEXTAREA cols="35" rows="20" name="InfoContact" id="postArea" class="area" ></TEXTAREA>
                                </div>
</div> <!-- /Area -->
                              <input type="hidden" name="sendData" value="'.$arraConv.'">
                            <input type="submit" name="enviarDataEvent" value="Enviar">
                        </div><!-- /DataEntry -->
                    </form>
                </div> <!-- /Contact --> 
    
  teniendo el formulario despues recibo los datos por POST en prosForm.php  
 Código PHP:
    <?php
include 'class.phpMailer.php'
//comprobamos que venga del fomulario
if($_POST['sendData']){
//recibo los datos
       $nombre = $_POST['nombreCampoInputFormetc']
      //[...]
   $mail = new PHPMailer();
   $mail->Mailer = "smtp";    
     $mail->IsHTML(true); 
            $mail->Subject = $subjet;
            $mail->Body = $msj;
if(!$mail->Send()){
                    echo 'error en este envio';
                }