I am migrating a location from a SBS 2008 (exch 2007) to an Exchange 2013 environment. All of the local PCs are setup and functioning properly and connecting to the mailboxes on their respective servers. Before migrating all mobile users to the Exchange 2013 in need to resolve ActiveSync connectivity for mobile devices.
I have procured a UCC certificate and it has been installed on the Exch 2013 server and exported/installed to the Exch 2007 server. I am hoping to keep the external connectivity configuration changes to a minimum using ActiveSync and OWA.
The mobile users are using the existing connection (ext FQDN pointing to Exch 2007). Does anyone have recommendations to allow for connectivity to offsite users during the migration to both servers using the same ext FQDN?