I'll start off by saying that I know absolutely nothing about PHP. I'm more .NET.
I pulled this email template off the Internet - and the instructions said to simply change the "To" email address and the "Subject" line to whatever I wanted. At the very end of my PHP file, I have "Thank you for contacting us. We will be in touch with you very soon." - this message gets displayed on my browser when I click Submit. It thinks for a second, then displays the message, kind of indicating to me that the email sent. But I don't get any email. Any ideas why?
Here's my HTML form code:
<form name="contactform" method="post" action="MailHandler.php">
    <table width="450px">
        <tr>
            <td valign="top">
                <label for="first_name">First Name *</label>
            </td>
            <td valign="top">
                <input type="text" name="first_name" maxlength="50" size="30">
            </td>
        </tr>
        <tr>
            <td valign="top">
                <label for="last_name">
                Last Name *</label>
            </td>
            <td valign="top">
                <input type="text" name="last_name" maxlength="50" size="30">
            </td>
        </tr>
        <tr>
            <td valign="top">
                <label for="email">Email Address *</label>
            </td>
            <td valign="top">
                <input type="text" name="email" maxlength="80" size="30">
            </td>
        </tr>
        <tr>
            <td valign="top">
                <label for="telephone">Telephone Number</label>
            </td>
            <td valign="top">
                <input type="text" name="telephone" maxlength="30" size="30">
            </td>
        </tr>
        <tr>
            <td valign="top">
                <label for="comments">Comments *</label>
            </td>
            <td valign="top">
                <textarea name="comments" maxlength="1000" cols="25" rows="6"></textarea>
            </td>
        </tr>
        <tr>
            <td colspan="2" style="text-align:center">
                <br/>
                <input type="submit" value="Submit">
            </td>
        </tr>
    </table>
</form>
Here's MailHandler.php:
<?php
    if(isset($_POST['email'])) {
        // EDIT THE 2 LINES BELOW AS REQUIRED
        $email_to = "mike@mikemarks.net";
        $email_subject = "Your email subject line";
        function died($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.<br /><br />";
            echo $error."<br /><br />";
            echo "Please go back and fix these errors.<br /><br />";
            die();
        }
        // Validation expected data exists
        if(!isset($_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.<br />';
        }
        $string_exp = "/^[A-Za-z .'-]+$/";
        if(!preg_match($string_exp,$first_name)) {
          $error_message .= 'The First Name you entered does not appear to be valid.<br />';
        }
        if(!preg_match($string_exp,$last_name)) {
          $error_message .= 'The Last Name you entered does not appear to be valid.<br />';
        }
        if(strlen($comments) < 2) {
          $error_message .= 'The Comments you entered do not appear to be valid.<br />';
        }
        if(strlen($error_message) > 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);
?>
<!-- Include your own success HTML here -->
Thank you for contacting us. We will be in touch with you very soon.
<?php
    }
?>
 
     
     
    