Hi till / falko, this is kind of question / bug. When I have two clients A & B. Client a adds the domain test.com within the email area it is not possible for client b to add the same domain within email. That's fine. But does it make sense that Client b may add the domain of client a within it's sites? On one side for sure, if I logically split the functionality of email and web on _one_ domain across two users, but from my point of view this is are more rare szenario than a client (in this case a) owns a domain (in this case test.com) for email as well as for web, dns etc.?!