I have recently setup HTTP over EPC on Exchange 2003 and have opened the ports for NetBIOS and for the FQDN on the Exchange Server.
I have published the secure web server and called it RPC over HTTP as indicated.
I can obtain mail via OWA externally.
My problem is when I setup Outlook client 2007 to connect via RPC over HTTP then.
It asked for authentication and I type email@example.com and the password but when I click on okay it keeps prompting me for authentication.
I have an idea this has to do with the authentication set on IIS am I right?
Any ideas would be appreciated.