Problem with CONTACT_US_FOR_INFO

-- HikaShop version -- : 2.6.3
-- Joomla version -- : 3.6.0.
-- PHP version -- : 7
-- Browser(s) name and version -- : Firefox

In product page use CONTACT_US_FOR_INFO, i have 2 problem.
1. After click to OK button send email, but not show a system message, for example: "Message sent or thank you for e-mail"
2. When i get a mail with contact info, the product url link refer for the backend product page.
Could you help me to solve this problem?
Sorry for my bad english.

Hi! thanks for reply Not bug, but problem.
1. I’ve got the following problem: If a potential buyer sends a message, they don’t get any feedback wheather the message has been sucessfully sent. Is it possible to set up this function?
2. If I answer the mail of a potential buyer and they click on the link of the product that they find it the letter, they get to the backpage of the administrator where they won´t be able to check on the product before buying it. Is it possible to modify the link in the letter so that the potential buyer gets to the frontend page?

Hi Nikolas,
The first problem is solved, thanks!
But in the mail setting I do not know what amount to set
These my settings
http://imgur.com/qokpl1h
http://imgur.com/82ixI5l

Sorry! Im found it this place in system menu. Could you help me, what change in HTML version?
In sender infromation found this code, this should be rewritten?

$admin_product_url = JRoute::_('administrator/index.php?option=com_hikashop&ctrl=product&task=edit&cid[]='.$data->product->product_id, false, true);
$productClass = hikashop_get('class.product');
$productClass->addAlias($data->product);
$front_product_url = hikashop_frontendLink('index.php?option=com_hikashop&ctrl=product&task=show&cid='.$data->product->product_id.'&name='.$data->product->alias.$url_itemid);

thank you for your patience