Why is my AJAX Form Not Sending Email?

Question

I am using a PHP Mail form with AJAX and it's not sending any mail. What am I missing here?

send.php

<?php
    error_reporting(E_NOTICE);

    function valid_email($str)
    {
     return ( ! preg_match("/^([a-z0-9\+_\-]+)(\.[a-z0-9\+_\-]+)*@([a-z0-9\-]+\.)+[a-z]{2,6}$/ix", $str)) ? FALSE : TRUE;
    }

    if($_POST['first_name']!='' && $_POST['last_name']!='' && $_POST['e_mail']!='' && valid_email($_POST['e_mail'])==TRUE && strlen($_POST['message'])>30)
    {
     $to = '[email protected]';
     $headers =  'From: '.$_POST['e_mail'].''. "\r\n" .
       'Reply-To: '.$_POST['e_mail'].'' . "\r\n" .
       'X-Mailer: PHP/' . phpversion();
     $subject = "Hello! I'm testing my new ajax email that I got from roscripts.com";
     $message = htmlspecialchars($_POST['message']);

     if(mail($to, $subject, $message, $headers))
     {//we show the good guy only in one case and the bad one for the rest.
      echo 'Thank you '.$_POST['first_name'].'. Your message was sent';
     }
     else {
      echo "Message not sent. Please make sure you're not
       running this on localhost and also that you 
       are allowed to run mail() function from your webserver";
     }
    }
    else {
     echo 'Please make sure you filled all the required fields, 
     that you entered a valid email and also that your message 
     contains more then 30 characters.';
    }
?>

Answer 1

Is your email setup in PHP? Check that first, otherwise there doesn't seem to be any issue here that I can see. You should get some kind of output from this if/else block.

I would start by reviewing PHP error logs, to see if your mail() fn is working. That may be the cause.