Hi,
I have an Exchange 2013 environment with a certificate from a CA. I can successfully login using OWA, but connecting through Outlook 2010 client shows the following error message:
"Cannot open your default e-email folders. You must connect to Microsoft Exchange with the current profile before you can synchronize your folders with your Outlook data file (.ost)."
1. All users cannot connect using Outlook client.
2. I am using Negotiate Authentication in my Exchange proxy settings.
Any suggestions?