Recently my exchange 2013 mail server (after Windows Updates on 2-10-15) would not start. The server itself is fine (Windows 2008) but exchange wouldn't work, couldn't connect with outlook, owa, EAC.!!! Something got really corrupt. removing the updates did not fix, restoring system state did not fix, restoring OS from backup did not fix. I decided since my domain name was "mycompany.local", I might as well redo my whole domain, 3 servers, 5 workstations. So I setup a new domain "mycompany.com", setup a new DC and a new Mail server all is good so far. I was wondering since I still have access to the old exchange database ".edb" can I recover the emails from that DB into my new DB? since the mail server names and the domain names are different is that a deal breaker? Also the email domain is the same firstname.lastname@example.org.