<?php
    ini_set( 'display_errors', 1 );
    error_reporting( E_ALL );
    $hn = gethostname();
    $from = "root@$hn";
    $to = "testmail@hts.ru";
    $subject = "Nagios test mail working";
    $t = time();
    $message = "SENDTIME $t";
    $headers = "Return-Path: tekuchev@hts.ru \nFrom: " . $from;
    mail($to,$subject,$message, $headers);
?>