Whenever I check how CRM is doing internally I always check the event viewer to see if there’s anything going wrong with Dynamics CRM. The most common error I see in the event viewer is:
#26090 – An error occurred while opening mailbox ‘user@domain.com’. Microsoft.Crm.Tools.Email.Providers.EmailException: The remote Microsoft Exchange e-mail server returned the error “(401) Unauthorized”. Verify that you have permission to connect to the mailbox. —> System.Net.WebException: The request failed with HTTP status 401: Unauthorized.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.Crm.Tools.Email.Providers.ExchangeServiceBinding.ResolveNames(ResolveNamesType ResolveNames1)
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.IsCurrentUser()
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.GetService()
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.OpenMailbox()
at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.InitExchangeConnector()
— End of inner exception stack trace —
at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.WrapException(Exception e)
at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.InitExchangeConnector()
at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.OpenMailbox()
at Microsoft.Crm.Tools.Email.Providers.CrmPollingMailboxProvider.Run()rnSystem.Net.WebException: The request failed with HTTP status 401: Unauthorized.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.Crm.Tools.Email.Providers.ExchangeServiceBinding.ResolveNames(ResolveNamesType ResolveNames1)
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.IsCurrentUser()
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.GetService()
at Microsoft.Crm.Tools.Email.Providers.ExchangeWSConnector.OpenMailbox()
at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.InitExchangeConnector()
This issue is actually fairly simple to solve, and you can these details in less detail by opening the ‘Microsoft Dynamics CRM E-mail Router Configuration Manager’, clicking the ‘Users, Queues and Forward Mailboxes’ tab, selecting ‘Load Data’.
Once you’ve done that, click on the mailbox where the error is showing up (user@domain.com) and press ‘Test Access’, you should then see something along the lines of:
The solution to this is:
– Check the ‘E-Mail Access Configuration’ settings are correct (User administration in CRM)
– That the username and password in the users queue is correct (‘Queue Information -> ‘Configure Credentials for E-Mail Router’
– Log into CRM as the user, go into personal settings (File -> Options -> Email) and make sure the username and password there is correct.
If all the settings have been corrected, re-test user access and you should now see the following:
Note: If this fails to work, usually Exchange is having an issue or the email configuration itself needs to be reconfigured to meet any network changes you might have made.
Cheers,
Jason.
Experts in transformation
