title: Not receiving PHP contact form submissions
body: <p>I was wondering if you guys can figure out why I'm not receiving my contact form submissions. I tested it out with my secondary email but still haven't received it. I tried looking for answers here in SO and on Google but can't find any solution. I have 3 questions.</p>
  
  <p>It is my code? 
  Or did I not properly setup my Apache?
  Is my php code secure from spam?</p>
  
  <p>here's my code:</p>
  
  <pre><code>&lt;?php
  if(isset($_POST['email'])) {
  
  // CHANGE THE TWO LINES BELOW
  $email_to = "myemail@mail.com";
  
  $email_subject = "Contract work opportunity";
  
  
  function died($error) {
      // your error code can go here
      echo "We are very sorry, but there were error(s) found with the form you submitted. ";
      echo "These errors appear below.&lt;br /&gt;&lt;br /&gt;";
      echo $error."&lt;br /&gt;&lt;br /&gt;";
      echo "Please go back and fix these errors.&lt;br /&gt;&lt;br /&gt;";
      die();
  }
  
  // validation expected data exists
  if(!isset($_POST['first_name']) ||
      !isset($_POST['last_name']) ||
      !isset($_POST['email']) ||
      !isset($_POST['telephone']) ||
      !isset($_POST['comments'])) {
      died('We are sorry, but there appears to be a problem with the form you submitted.');       
  }
  
  $first_name = $_POST['first_name']; // required
  $last_name = $_POST['last_name']; // required
  $email_from = $_POST['email']; // required
  $telephone = $_POST['telephone']; // not required
  $comments = $_POST['comments']; // required
  
  $error_message = "";
  $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
  if(!preg_match($email_exp,$email_from)) {
  $error_message .= 'The Email Address you entered does not appear to be valid.&lt;br /&gt;';
  }
  $string_exp = "/^[A-Za-z .'-]+$/";
  if(!preg_match($string_exp,$first_name)) {
  $error_message .= 'The First Name you entered does not appear to be valid.&lt;br /&gt;';
  }
  if(!preg_match($string_exp,$last_name)) {
  $error_message .= 'The Last Name you entered does not appear to be valid.&lt;br /&gt;';
  }
  if(strlen($comments) &lt; 2) {
  $error_message .= 'The Comments you entered do not appear to be valid.&lt;br /&gt;';
  }
  if(strlen($error_message) &gt; 0) {
  died($error_message);
  }
  $email_message = "Form details below.\n\n";
  
  function clean_string($string) {
    $bad = array("content-type","bcc:","to:","cc:","href");
    return str_replace($bad,"",$string);
  }
  
  $email_message .= "First Name: ".clean_string($first_name)."\n";
  $email_message .= "Last Name: ".clean_string($last_name)."\n";
  $email_message .= "Email: ".clean_string($email_from)."\n";
  $email_message .= "Telephone: ".clean_string($telephone)."\n";
  $email_message .= "Comments: ".clean_string($comments)."\n";
  
  
  // create email headers
  $headers = 'From: '.$email_from."\r\n".
  'Reply-To: '.$email_from."\r\n" .
  'X-Mailer: PHP/' . phpversion();
  @mail($email_to, $email_subject, $email_message, $headers);  
  ?&gt;
  
  &lt;!-- place your own success html below --&gt;
  
  Thank you for contacting. I will be in touch with you very soon.
  
  &lt;?php
  }
  die();
  ?&gt;
  </code></pre>
  
  <p>HTML</p>
  
  <pre><code>&lt;form name="htmlform" method="post" action="http://mysite.localdom/html_form_send.php/"&gt;
  &lt;table width="400px"&gt;
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td valign="top"&gt;
  &lt;label for="first_name"&gt;First Name *&lt;/label&gt;
  &lt;/td&gt;
  &lt;td valign="top"&gt;
  &lt;input type="text" name="first_name" maxlength="50"&gt;
  &lt;/td&gt;
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td valign="top"&gt;
  &lt;label for="last_name"&gt;Last Name *&lt;/label&gt;
  &lt;/td&gt;
  &lt;td valign="top"&gt;
  &lt;input  type="text" name="last_name" maxlength="50"&gt;
  &lt;/td&gt;
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td valign="top"&gt;
  &lt;label for="business_name"&gt;Business Name&lt;/label&gt;
  &lt;/td&gt;
  &lt;td valign="top"&gt;
  &lt;input  type="text" name="business_name" maxlength="200"&gt;
  &lt;/td&gt;
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td valign="top"&gt;
  &lt;label for="website"&gt;Website&lt;/label&gt;
  &lt;/td&gt;
  &lt;td valign="top"&gt;
  &lt;input  type="text" name="website" maxlength="200"&gt;
  &lt;/td&gt;
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td valign="top"&gt;
  &lt;label for="email"&gt;Email Address *&lt;/label&gt;
  &lt;/td&gt;
  &lt;td valign="top"&gt;
  &lt;input  type="text" name="email" maxlength="80"&gt;
  &lt;/td&gt;
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td valign="top"&gt;
  &lt;label for="telephone"&gt;Phone&lt;/label&gt;
  &lt;/td&gt;
  &lt;td valign="top"&gt;
  &lt;input type="text" name="telephone" maxlength="30"&gt;
  &lt;/td&gt;
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td valign="top"&gt;
  &lt;label for="comments"&gt;Message&lt;/label&gt;
  &lt;/td&gt;
  &lt;td valign="top"&gt;
  &lt;textarea  name="comments" maxlength="5000" cols="25" rows="6"&gt;ok ok ok&lt;/textarea&gt;
  &lt;/td&gt; 
  &lt;/tr&gt;
  
  &lt;tr&gt;
  &lt;td colspan="2" style="text-align:center"&gt;
  &lt;input type="submit" value="Submit" id="submitbutton"&gt;
  &lt;/td&gt;
  &lt;/tr&gt;
  &lt;/table&gt;
  &lt;/form&gt;
  </code></pre>