Just finish setting up new setup for one of my client and installed exchange 2010 sp3 on server 20102 R2. The issue is that with configuring the mail boxes on mobile devices. Users can access emails on outlook via OWA and it works fine. When ever user add new exchange account on mobile device and give all the required information user gets all the ticks and get the option to save but when user go back to his mail account user get message display on screen "Cannot Get Mail The connection to the server failed"
I checked all the settings and everything seems to be fine. SSL certificate installed ports 80,443,25, 587 are open on firewall. Public ip address is also configured for the exchange server.
Hope to hear from you guys soon.