We changed the IP address of our BES (and Exchange 2010 server for that matter), and now we can't send or receive email on the remote devices. We were able to receive mail earlier, and send from within the domain, but were unable to send outside of the domain. Restarted all services but no dice. Restarted the entire server and now all mail on the devices is down. Can't find any hard coded IP or hostname entries on the BES, and made sure DNS was up and running. Any suggestions?