Existing setup - - - Single Exchange 2013 Standard server doing all roles with 5 databases. Need to add a second Exchange server because of adding new users and a new database. Unfortunately, I'm struggling with understanding. I thought that I could add a second mailbox (only) server that would run the new mailbox and continue using the original server for OWA, SMTP, etc. I can add the users to the new mailbox, but can't login to OWA. Can anyone help me with this? Am I wrong that I can keep OWA, etc on the original? Any good links on how to do this? Thanks in advance ... Experts Exchange has always been a wealth of knowledge and help.