Exchange 2010 Hybrid Deployment with Office 365 - Outlook Authentication
Posted on 2013-11-06
We have a hybrid deployment with ADFS and DirSync working as it should.
Internally everything works to go to the portal and use Outlook.
Problem is, when I migrate a user to the cloud, Outlook (2010 Professional Plus SP2) will not connect to the Office 365 box. It keeps saying the username or password is incorrect.
If I go to the portal, the authentication works perfectly internally. So I am wondering where I may be going wrong here. Why won't outlook connect to the mailbox with the credentials supplied?
I have run the desktop setup also from the portal and that doesnt help anything.
Microsoft Sign-on assistant is installed on the computer.