I am working on deploying a new 2013 Exchange server. The Exchange is installed on a 2012 Server OS. I have three windows terminal servers (or remote desktop services) at three separate locations that have users working on them via thin-client - (RDP). The users run Outlook 2010 from the three servers. Two of the terminal servers are Windows 2008 R2 and one is 2003 R2 Standard. I am able to get the Outlook clients to connect to Exchange from the two 2008 servers but the Outlook clients on the 2003 server are so far unable to connect to the Exchange server.
When I try to add the mail profile from the control panel - signed on as each user - it auto detects the user profile and looks like it connects but then it prompts for a password. I can try to input the password but it will not accept it. Ultimately it fails with a message indicating Outlook cannot log on etc., etc.
These three servers are at three different locations but connect back to the location where the Exchange server resides via MPLS. Connectivity between locations is solid.
Odd thing is I have an old 2003 server at the same location where the Exchange box is and I fired it up and tried to connect an Outlook client from it and it does not work either.
Does anyone know of any documented problems with connecting to 2013 Exchange from a 2003 server OS? Or, conversely, has anyone successfully deployed Exchange to Outlook clients on a 2003 server?