Microsoft Dynamics CRM 4.0 E-Mail Router unexpectedly stalls


 



Hi all,


It can happen that for no apparent reason the E-Mail Router sometimes stops working and you can receive the following error in the E-Mail Router machine Application Log:



#26234 - The E-mail Router service could not process a provider work item using assembly:
Microsoft.Crm.Tools.EmailProviders.dll and class: Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider.
System.Threading.ThreadAbortException: Thread was being aborted.
at Microsoft.Crm.Tools.Email.Agent.ServiceCore.ExecuteProviderWork(Object providerQueueRequestObject)


#14494 - A provider work item using assembly: 
Microsoft.Crm.Tools.EmailProviders.dll and class: Microsoft.Crm.Tools.Email.Providers.ExchangePollingMailboxProvider
has been aborted because it has been running for longer than the allowed execution time. 
This behavior may occur when there is a problem with the network or because the e-mail server is busy.
Verify that you can log on to the e-mail server by using an e-mail application that uses the account specified 
for the E-mail Router.


#26090 - An error occurred while opening mailbox crmemail@contoso.com. System.Net.WebException: The operation has timed out
at System.Net.HttpWebRequest.GetRequestStream()
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()

If you run the “Test Access” from the Configuration Manager you can also receive a timeout.


This is due to a lack of connections from a .Net perspective when we try to connect to Exchange via HttpDav. For more information, check the following article:


http://support.microsoft.com/default.aspx?scid=kb;EN-US;915599


 


In order to resolve this issue please follow these steps :


On the CRM E-Mail Router machine, go to the following folder: %ProgramFiles%\Microsoft CRM Email\Server


1°) Right click on this file : Microsoft.Crm.Tools.Email.Management.config and open it in notepad.


Under the <Configuration> tag, add the following:



<system.net>
<connectionManagement>
<add address="*" maxconnection = "24" />
</connectionManagement>
</system.net>

Save the file.


2°) Still within the same folder, create a file called: Microsoft.Crm.Tools.EmailAgent.exe.config


Edit the file in Notepad and add this content:



<configuration>
<system.net>
<connectionManagement>
<add address="*" maxconnection = "24" />
</connectionManagement>
</system.net>
</configuration>

Save the file and restart the E-Mail Router service (“NET STOP MSCRMEMAIL”, then “NET START MSCRMEMAIL” from a command line)


This should resolve this issue.


Kind regards


Benjamin LECOQ
CRM Escalation Engineer

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