code: protected function getObfuscatedEmail(CustomerInterface $user)
      {
          $email = $user->getEmail();
          if (false !== $pos = strpos($email, '@')) {
              $email = '...' . substr($email, $pos);
          }
  
          return $email;
      }
docs: Get the truncated email displayed when requesting the resetting.
  
  The default implementation only keeps the part following @ in the address.
  
  @param \FOS\UserBundle\Model\UserInterface $user
  
  @return string