When we first try out Zimbra, we are using test.example.com. We notice that all account with @test.example.com only require login name instead of full email address to login. Does this mean that if we change the hostname from test.example.com to example.com, all existing users with @example.com will only require login name instead of full email address to login?
If this is so, what is the proper steps to change the hostname without the risk of bringing Zimbra down again? Or do we even need to change the hostname to get this convenient for other email domain hosted in Zimbra?