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Access is denied error when you try to connect Microsoft Dynamics CRM for Office Outlook

This article provides a solution to an error that occurs when you try to connect Microsoft Dynamics CRM for Office Outlook.

Applies to:   Microsoft Dynamics CRM 2015, Microsoft Dynamics CRM 2013
Original KB number:   3088205


When you try to connect Microsoft Dynamics CRM for Office Outlook with an On-Premises CRM organization, and don't include the organization name in the Claims-Based Authentication URL, you receive the following error message:

"Cannot connect to Microsoft Dynamics CRM server because we cannot authenticate your credentials.

Check your connection or contact your administrator for more help."


Microsoft Dynamics CRM for Office Outlook was unable to authenticate you because the organization name wasn't included in the URL.


Provide the organization name as part of the Claims-Based Authentication URL when configuring the Microsoft Dynamics CRM for Office Outlook client.

Example URL Format: https://<crmservername>.<domain>.<domainsuffix>/<orgname>
Example URL:


If you have your Microsoft Dynamics CRM organization configured as an Internet Facing Deployment (IFD), you can also access via your IFD URL which includes the organization name:

Example IFD URL Format: https://<orgname>.<domain>.<domainsuffix>
Example IFD URL:

More information

When you select Details, the following additional information appears and is also available in the log file:

Access is denied.

Server stack trace:
at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version, FaultConverter faultConverter)
at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)
at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)
at System.Windows.Forms.Control.Invoke(Delegate method)
at Microsoft.Crm.Outlook.ClientAuth.ClientAuthProvider`1.RetrieveUserCredentialsAndSignIn(Control parentWindow, Boolean retryOnError, IClientOrganizationContext context)
at Microsoft.Crm.Outlook.ClientAuth.ClientAuthProvider`1.SignIn(AuthUIMode uiMode, IClientOrganizationContext context, Control parentWindow, Boolean retryOnError)
at Microsoft.Crm.Application.Outlook.Config.DeploymentsInfo`1.DeploymentInfo`1.LoadOrganizationsInternal(AuthUIMode uiMode, Control parentWindow)
at Microsoft.Crm.Application.Outlook.Config.DeploymentsInfo`1.DeploymentInfo`1.LoadOrganizations(AuthUIMode uiMode, Control parentWindow, IClientAuthProvider`1 authenticatedProvider)
at Microsoft.Crm.Application.Outlook.Config.DeploymentsInfo`1.InternalLoadOrganizations(DataCollection`1 orgs, AuthUIMode uiMode, Control parentWindow)