I have 2 Exchange 2007 servers with the following roles: Exchange Server 1: Hub Transport, Client Access, Mailbox Exchange Server 2: Mailbox I recently installed Exchange Server 2 to offload all mailbox accounts and lighten the load on Exchange Server 1. (Both servers are on the same network) Exchange Server 1 (Send Connector) sends outbound to linux box for outbound email. Linux box intercepts inbound and forwards to receive connector on Exchange Server 1. Email is flowing between both servers, Outlook users have no issues. OWA users hit Exchange Server 1 and it will retrieve their emails (even if its on the 2nd server). Entourage 2008 users (existing) are connected to Exchange Server 1 - no problem. When I move their mailbox to the 2nd server, they lose connectivity. In order for this to work, am I correct in assuming that I need to also install the Client Access role to the 2nd server? David Moore