$pagename = array_pop(explode("/", $_SERVER['PHP_SELF']));
 ini_set('SMTP','localhost');
 ini_set('sendmail_from', 'info21232@demo.com');
 ini_set('smtp_port',25);

 $adminemailid = "demo175271@gmail.com,demo175272@gmail.com,demo175273@gmail.com";
@mail($adminemailid, "Enquiry Form", $message, $headers);