How to turn off the e-mail GUID if you have upgraded to Microsoft CRM 1.2 or if you are doing a new install of Microsoft CRM 1.2 (862526)

Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:SUMMARY

A unique tracking number appears on the subject line of e-mail messages composed in the Microsoft CRM system. This article describes the steps you must take to turn off the e-mail GUID if you have upgraded to Microsoft CRM 1.2 or if you are doing a new install of Microsoft CRM 1.2.

MORE INFORMATION

In version 1.0, there is a hot fix available that adds a MessageTagBehavior value in the registry on the Exchange Server where the Microsoft CRM Exchange E-mail Router is installed. The hot fix enables a Microsoft CRM administrator to turn on or to turn off the GUID in outgoing e-mail messages. Use Registry Editor to determine whether any updates are required to turn off the e-mail GUID.

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
http://support.microsoft.com/default.aspx?scid=kb;EN-US;256986

To verify the registry value on the Exchange Server, follow these steps:

1. Log on using a user account that has administrator permissions on the server.
2. Click Start, click Run, type regedt32 and then click OK.
3. Locate the following registry subkey: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSCRM\MessageTagBehavior.
4. If the MessageTagBehavior subkey does not exist, create the key using the following values:
   • Value Type: DWORD key value
   • Value Name: MessageTagBehavior
   • Value data: 0
   
   Note: If the Value data is Null or 1, the tracking number will be attached to the subject line of the e-mail messages. If the Value data is 0, the tracking number is not attached to outgoing e-mail messages.
5. Close out of Registry Editor.
6. Click Start, point to All Programs, point to Administrative Tools and then click Services.
7. Right-click the Microsoft CRM Exchange Queue Service service and then click Restart.

If the e-mail GUID is turned off, the Microsoft CRM system will no longer generate the unique tracking number. Additionally, this causes the loss of the Microsoft CRM system's ability to automatically track incoming e-mail messages.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

This article was TechKnowledge Document ID: 34747