I have OWA, OMA, and AES all working. OWA is enabled with certificate based authtentication. All is well! I have one Exchange Server in our organization. I have only port 443 opened on my firewall. I am still getting event id 3029, Server Active Sync Error on my exchange server. I applied http://support.microsoft.com/default.aspx?kbid=817379
and that got me on the right track to send and recieve email on mobile smartphones. OMA works with no problems too! OWA is still on certificate base authentication and that works as well!. I do not get the OMA error(event id 1503) as I did before I applied kb817379, but I still get event id 3029 for AES. Should I worry about this? Or is there a way to disable this error events?