I'm trying to setup a hybrid connection with Office 365, but working through the wizard I keep getting stuck at the same point. The error message I see is:
Update-HybridConfiguration
Failed
Error:
Updating hybrid configuration failed with error 'Subtask ValidateConfiguration execution failed: Configure Mail Flow
at Microsoft.Exchange.Management.Hybrid.Engine.ExecuteTask(ITask taskBase, ITaskContext taskContext)
'.
I've seen other errors similar which seem to related to certificates but they had more info after "Configure Mail Flow", this doesn't and I'm stuck with how to resolve it.
Can anybody shed some light on why it's not working?