Have a SBS 2003 SP2 Server with Exchange SP2. Clients with Windows XP and Outlook 2003 can connect to Exchange via RPC over HTTP with no issues.
Have a remote user with Windows 7 (not added to domain) and Outlook 2007. We tried to set him up the same way but can't get Outlook to sync with Exchange.
We are using a self-signed certificate and have imported it into the Trusted Root Certification Authorities store on the Win 7 PC, but that did not resolve the issue. The certificate is for mail.ourdomain.com.
We are using Basic Authentication but have tried NTLM as well.
Tried running our settings on https://www.testexchangeconnectivity.com/
and everything passes except for "Certificate trust validation" which I'm guessing is due to the self-signed.
Currently we getting an error that says "Microsoft Exchange is unavailable". If I go to https://mail.ourdomain.com/rpc
I keep getting prompted for credentials.
It is working for for Outlook 2003 clients.