I've just configured Exchange 2003 for direct push email out to mobiles. When I initially setup the phone via activesync I leave SSL unticked and fill in the boxes and sync just fine.
Then I install a certificate on the mobile phone and edit the active sync settings so it uses SSL and away it goes... works fine over the air.
The problem is then that when you reconnect the phone to your PC to sync with the cable it fails (because it's now using SSL).
Does anyone know how to configure either ActiveSync or the phone to be happy with SSL over the air and no SSL when cable syncing?