I am using the below contact from code in the WordPress by creating shortcode. When i submit the form it shows success message but didn't get any email in inbox or spam. Can anybody please help.

```
function contactform_func( $atts ) {
$atts = shortcode_atts( array(
    'to_email' => '',
    'title' => 'Contact enquiry - '.get_bloginfo('url'),
), $atts );

$cform = "<div class=\"main-form-area\" id=\"contactform_main\">";

$cerr = array();
if( isset($_POST['c_submit']) && $_POST['c_submit']=='Submit' ){
    $name           = trim( $_POST['c_name'] );
    $email          = trim( $_POST['c_email'] );
    $phone          = trim( $_POST['c_phone'] );
    $website        = trim( $_POST['c_website'] );
    $comments       = trim( $_POST['c_comments'] );
    $captcha        = trim( $_POST['c_captcha'] );
    $captcha_cnf    = trim( $_POST['c_captcha_confirm'] );

    if( !$name )
        $cerr['name'] = 'Please enter your name.';
    if( ! filter_var($email, FILTER_VALIDATE_EMAIL) ) 
        $cerr['email'] = 'Please enter a valid email.';
    if( !$phone )
        $cerr['phone'] = 'Please enter your phone number.';
    if( !$comments )
        $cerr['comments'] = 'Please enter your question / comments.';
    if( !$captcha || (md5($captcha) != $captcha_cnf) )
        $cerr['captcha'] = 'Please enter the correct answer.';

    if( count($cerr) == 0 ){
        $subject = $atts['title'];
        $headers = "From: ".$name." <" . strip_tags($email) . ">\r\n";
        $headers .= "MIME-Version: 1.0\r\n";
        $headers .= "Content-type: text/html; charset=iso-8859-1\r\n";

        $message = '<html><body>
                        <table>
                            <tr><td>Name: </td><td>'.$name.'</td></tr>
                            <tr><td>Email: </td><td>'.$email.'</td></tr>
                            <tr><td>Phone: </td><td>'.$phone.'</td></tr>
                            <tr><td>Website: </td><td>'.$website.'</td></tr>
                            <tr><td>Comments: </td><td>'.$comments.'</td></tr>
                        </table>
                    </body>
                </html>';
        mail( $atts['to_email'], $subject, $message, $headers);
        $cform .= '<div class="success_msg">Thank you! A representative will get back to you very shortly.</div>';
        unset( $name, $email, $phone, $website, $comments, $captcha );
    }else{
        $cform .= '<div class="error_msg">';
        $cform .= implode('<br />',$cerr);
        $cform .= '</div>';
    }
}

$capNum1    = rand(1,4);
$capNum2    = rand(1,5);
$capSum     = $capNum1 + $capNum2;
$sumStr     = $capNum1." + ".$capNum2 ." = ";

$cform .= "<form name=\"contactform\" action=\"#contactform_main\" method=\"post\">
        <p class=\"left\"><input type=\"text\" name=\"c_name\" value=\"". ( ( empty($name) == false ) ? $name : "" ) ."\" placeholder=\"Name\" /></p>
        <p class=\"right\"><input type=\"email\" name=\"c_email\" value=\"". ( ( empty($email) == false ) ? $email : "" ) ."\" placeholder=\"Email\" /></p><div class=\"clear\"></div>
        <p class=\"left\"><input type=\"tel\" name=\"c_phone\" value=\"". ( ( empty($phone) == false ) ? $phone : "" ) ."\" placeholder=\"Phone\" /></p>
        <p class=\"right\"><input type=\"url\" name=\"c_website\" value=\"". ( ( empty($website) == false ) ? $website : "" ) ."\" placeholder=\"Website with prefix http://\" /></p><div class=\"clear\"></div>
        <p><textarea name=\"c_comments\" placeholder=\"Message\">". ( ( empty($comments) == false ) ? $comments : "" ) ."</textarea></p>";
$cform .= "<br /><p class=\"left\">$sumStr<input style=\"width:200px;\" type=\"text\" placeholder=\"Captcha\" value=\"". ( ( empty($captcha) == false ) ? $captcha : "" ) ."\" name=\"c_captcha\" /><input type=\"hidden\" name=\"c_captcha_confirm\" value=\"". md5($capSum)."\"></p><div class=\"clear\"></div>";
$cform .= "<p class=\"sub\"><input type=\"submit\" name=\"c_submit\" value=\"Submit\" /></p>
    </form>
</div>";
return $cform;} add_shortcode( 'contactform', 'contactform_func' );

```