It works for me.
Try this :
<?php
// TEST OF THE MAIL SYSTEM USING PHP mail()
// this must be a valid email account on your domain
$from = "xxx@xxx.com";
// DOES NOT BOUNCE BACK FROM hotmail!!
$to="xxxx@xxx.com";
$mailbody="Test message sent (PST): \n" . date('l jS \of F Y h:i:s A');
$subject="Test of PHP mail()" ;
// NOT text/html
$headers = "Content-type: text/plain; charset=windows-1251 \r\n";
$headers .= "From: $from\r\n";
$headers .= "Reply-To: $from\r\n";
$headers .= "MIME-Version: 1.0\r\n";
$headers .= "X-Mailer: PHP/" . phpversion();
$resp = mail($to, $subject, $mailbody, $headers);
if( $resp ){
$outcome = "Mail sent" ;
} else {
$outcome = "Mail not sent";
}
print "\nThe mail system said: $outcome\n\n" ;
exit();
?>