title: Multiple account with same Email Address
body: <p>I have a requirement that a user can register multiple times in the website using same email address. There is an internal logic that based on the company they are they see a particular home page and access. </p>
  
  <p>Does Liferay support multiple accounts with same email address. I think there is validation done in UserLocalServiceImpl to check duplicate email address, so maybe its not possible and I have to override and create a service wrapper. Still giving it a try.</p>