Let's say my ZCS has been installed with "domain.com" as default domain. My users have a main Zimbra account "firstname.lastname@example.org". I also configured a "sub.domain.com" domain, and a "email@example.com" alias for each user ("alias" is not equal to "firstname.lastname").
The users can use POP with "firstname.lastname@example.org" as login. They can also log in with "firstname.lastname". But what I need is a way to use only "alias" as POP login, not "email@example.com". Is there a way to set the default domain for non-qualified POP logins ? This protocol can't use VirtualHosts like with HTTP login.