Does anyone know if its possible to have a unique looking webclient for seperate domains on the same Zimbra server?

I have domain 1 which I want to have connect to a webmail with the same URL as itself

And I want to have domain 2 connect to its webmail client with its same URL.

The problem I have right now is that multiple domains have to go to 1 domains URL for the webclient....

Can someone please clarify how I can have each domain have the webmail in its own URL on the same machine?

I'm using Zimbra 7.1.2