I have exchange server 2003 and users are able to sync with it but how that is happening is a bit of a mystery. Let me explain further.
We have an old SBS 2003 server, server 1, that is going to be retired, and a new SBS 2003 server, server 2 that will take it's place. At this point, server 1 is still our web server and server 2 is now the exchange server. Our router has a rule to allow HTTP requests to go to server 1. ActiveSync in on server 2. On the mobile devices the ActiveSync server is set to exchange.server1.com.
Now on the other hand, OWA does not work, eg www.server1.com/exchange
does nothing as expected. As a test I changed the OWA port to 440 and added a rule to allow 440 requests to go to server 2 and it worked as expected.
So why is activesync working
Thanks for your thoughts