I have one exchange 2003 server with OWA configured. I want to be able to log on to OWA without having to enter a username and password when I'm already logged on to a domain computer.
If I use the server name only it will passthrough authentication just fine, for instance https://EXCH01/exchange
. However if I use http://EXCH01.MYORG.MYDOMAIN.COM/exchange it prompts me for the User/Pass.
Both instances resolve to the same internal IP address and the reason I need the FQDN to work as passthrough is because I have a wildcard certificate that would allow my users to get right into their OWA mailbox without having to click OK to proceed with that ominous red bar on top that makes you feel like you did something wrong, lol.