i created a contribution page, but when an user fills out the fields and pays we receive the paypal advice only without the user data registration. How to solve it?
Make sure you have enabled receipting in the Event configuration - and double check the to and bcc fields!
Scroll down (lots) to Confirmation Email section.
If that's working: check that you can send Email from CiviCRM: go into your Administer -> System Settings -> Outbound Email -> and try send yourself a test Email;