MSCRM Email Error

[aabz]

Hi,

We have CRM 4 Installed on our server and recently we have been getting the following error in our server logs.



Event Type: Error

Event Source: MSCRMEmail

Event Category: None

Event ID: 0

Date: 27/08/2008

Time: 14:05:10

User: N/A

Computer: BARSRV01

Description:

#26090 - An error occurred while opening mailbox . System.Net.WebException: The remote server returned an error: (501) Not Implemented.

at System.Net.HttpWebRequest.GetResponse()

at Microsoft.Crm.Tools.Email.Providers.HttpDavRequest.SubmitXmlCommand(HttpWebRequest httpWebRequest, String body)

at Microsoft.Crm.Tools.Email.Providers.HttpDavRequest.RetrieveInboxUri()

at Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.OpenMailbox()

at Microsoft.Crm.Tools.Email.Providers.CrmPollingMailboxProvider.Run()


For more information, see Help and Support Center at

http://go.microsoft.com/fwlink/events.asp.

We have been getting these upto 30+ times per day.



CRM 4.0 and Exchange 2003 are installed on seperate servers.

Both servers have Windows SBS 2003 installed.



Does anyone know what is causing this error and how to resolve?



Thanks in advance.