[SOLVED] The buyer don't receive email from paypal

-- HikaShop version -- : 2.5.0
-- Joomla version -- : 3.4.3

Hello
I have a curiosity.
When the user buy a product by paypal, from vendor side everything works good, the stautus order is confimed etc etc.
But, I dont know why the buyer doesn't receive the receipt payment from paypal, I am using my paypal as buyer and usually I receive that from other website

What can I do??
Thanks
Frank

All is ok.
I just made confusion with configuration email, It works