Issue with my site

code for the order.php is;

<?php session_start();
/*
Template Name: Contact Page
*/
?>
<?php if (is_front_page()) { ?>
<?php include(TEMPLATEPATH . '/home.php'); ?>
<?php } else { ?>
<?php the_post(); ?>

<?php
$et_ptemplate_settings = array();
$et_ptemplate_settings = maybe_unserialize( get_post_meta($post->ID,'et_ptemplate_settings',true) );

$fullwidth = isset( $et_ptemplate_settings['et_fullwidthpage'] ) ? (bool) $et_ptemplate_settings['et_fullwidthpage'] : (bool) $et_ptemplate_settings['et_fullwidthpage'];

$et_regenerate_numbers = isset( $et_ptemplate_settings['et_regenerate_numbers'] ) ? (bool) $et_ptemplate_settings['et_regenerate_numbers'] : (bool) $et_ptemplate_settings['et_regenerate_numbers'];

$et_error_message = '';
$et_contact_error = false;

if ( isset($_POST['et_contactform_submit']) ) {
if ( !isset($_POST['et_contact_captcha']) || empty($_POST['et_contact_captcha']) ) {
$et_error_message .= '<p>' . __('Make sure you entered the captcha. ','TheCorporation') . '</p>';
$et_contact_error = true;
} else if ( $_POST['et_contact_captcha'] <> ( $_SESSION['et_first_digit'] + $_SESSION['et_second_digit'] ) ) {
$et_numbers_string = $et_regenerate_numbers ? __('Numbers regenerated.') : '';
$et_error_message .= '<p>' . __('You entered the wrong number in captcha. ','TheCorporation') . $et_numbers_string . '</p>';

if ($et_regenerate_numbers) {
unset( $_SESSION['et_first_digit'] );
unset( $_SESSION['et_second_digit'] );
}

$et_contact_error = true;
} else if ( empty($_POST['et_contact_name']) || empty($_POST['et_contact_email']) || empty($_POST['et_contact_subject']) || empty($_POST['et_contact_message']) ){
$et_error_message .= '<p>' . __('Make sure you fill all fields. ','TheCorporation') . '</p>';
$et_contact_error = true;
}

if ( !is_email( $_POST['et_contact_email'] ) ) {
$et_error_message .= '<p>' . __('Invalid Email. ','TheCorporation') . '</p>';
$et_contact_error = true;
}
} else {
$et_contact_error = true;
if ( isset($_SESSION['et_first_digit'] ) ) unset( $_SESSION['et_first_digit'] );
if ( isset($_SESSION['et_second_digit'] ) ) unset( $_SESSION['et_second_digit'] );
}

if ( !isset($_SESSION['et_first_digit'] ) ) $_SESSION['et_first_digit'] = $et_first_digit = rand(1, 15);
else $et_first_digit = $_SESSION['et_first_digit'];

if ( !isset($_SESSION['et_second_digit'] ) ) $_SESSION['et_second_digit'] = $et_second_digit = rand(1, 15);
else $et_second_digit = $_SESSION['et_second_digit'];

if ( !$et_contact_error ) {
$et_email_to = ( isset($et_ptemplate_settings['et_email_to']) && !empty($et_ptemplate_settings['et_email_to']) ) ? $et_ptemplate_settings['et_email_to'] : get_site_option('admin_email');

$et_site_name = MULTISITE ? $current_site->site_name : get_bloginfo('name');
wp_mail($et_email_to, sprintf( '[%s] ' . esc_html($_POST['et_contact_subject']), $et_site_name ), esc_html($_POST['et_contact_message']),'From: "'. esc_html($_POST['et_contact_name']) .'" <' . esc_html($_POST['et_contact_email']) . '>');

$et_error_message = '<p>' . __('Thanks for contacting us','TheCorporation') . '</p>';
}
?>

<?php get_header(); ?>

<div id="content-area" class="clearfix<?php if($fullwidth) echo(' fullwidth');?>">

<div class="post clearfix">
<?php $width = get_option('thecorporation_thumbnail_width_pages') ;
$height = get_option('thecorporation_thumbnail_height_pages' );
$classtext = 'thumbnail-post alignleft';
$titletext = get_the_title();

$thumbnail = get_thumbnail($width,$height,$classtext,$titletext ,$titletext);
$thumb = $thumbnail["thumb"]; ?>

<?php if($thumb <> '' && get_option('thecorporation_page_thumbnails') == 'on') { ?>
<?php print_thumbnail($thumb, $thumbnail["use_timthumb"], $titletext , $width, $height, $classtext); ?>
<?php }; ?>
<?php the_content(); ?>
<?php wp_link_pages(array('before' => '<p><strong>Pages:</strong> ', 'after' => '</p>', 'next_or_number' => 'number')); ?>

<div id="et-contact">

<div id="et-contact-message"><?php echo($et_error_message); ?> </div>

<?php if ( $et_contact_error ) { ?>
<form action="<?php echo(get_permalink($post->ID)); ?>" method="post" id="et_contact_form">
<div id="et_contact_left">
<p class="clearfix">
<input type="text" name="et_contact_name" value="<?php if ( isset($_POST['et_contact_name']) ) echo esc_attr($_POST['et_contact_name']); else _e('Name','TheCorporation'); ?>" id="et_contact_name" class="input" />
</p>

<p class="clearfix">
<input type="text" name="et_contact_email" value="<?php if ( isset($_POST['et_contact_email']) ) echo esc_attr($_POST['et_contact_email']); else _e('Email Address','TheCorporation'); ?>" id="et_contact_email" class="input" />
</p>

<p class="clearfix">
<input type="text" name="et_contact_subject" value="<?php if ( isset($_POST['et_contact_subject']) ) echo esc_attr($_POST['et_contact_subject']); else _e('Subject','TheCorporation'); ?>" id="et_contact_subject" class="input" />
</p>
</div> <!-- #et_contact_left -->

<div id="et_contact_right">
<p class="clearfix">
<?php
_e('Captcha: ','TheCorporation');
echo '<br/>';
echo esc_attr($et_first_digit) . ' + ' . esc_attr($et_second_digit) . ' = ';
?>
<input type="text" name="et_contact_captcha" value="<?php if ( isset($_POST['et_contact_captcha']) ) echo esc_attr($_POST['et_contact_captcha']); ?>" id="et_contact_captcha" class="input" size="2" />
</p>
</div> <!-- #et_contact_right -->

<div class="clear"></div>

<p class="clearfix">
<textarea class="input" id="et_contact_message" name="et_contact_message"><?php if ( isset($_POST['et_contact_message']) ) echo esc_attr($_POST['et_contact_message']); else _e('Message','TheCorporation'); ?></textarea>
</p>

<input type="hidden" name="et_contactform_submit" value="et_contact_proccess" />

<input type="reset" id="et_contact_reset" value="<?php _e('Reset','TheCorporation'); ?>" />
<input class="et_contact_submit" type="submit" value="<?php _e('Submit','TheCorporation'); ?>" id="et_contact_submit" />
</form>
<?php } ?>
</div> <!-- end #et-contact -->

<div class="clear"></div>

<?php edit_post_link(__('Edit this page','TheCorporation')); ?>
<div class="clear"></div>
</div> <!-- end .post -->

</div> <!-- end #content-area -->

<?php if (!$fullwidth) get_sidebar(); ?>
<?php get_footer(); ?>
<?php } ?>

I think that here is not issue with sending email at all, but that he has not defined call back which can take care of that all.

Go here https://developer.paypal.com/docs/cl...htmlvariables/

What is important for you is , so when customer finish order, then he will be redirected on this URL and you will parse in this URL id of stored form. So when user open page in notify_url, this will be your thank you page - which will display "THANK YOU FOR YOUR ORDER" and which will send you email with information about the order. All clear?