While troubleshooting another problem I have found that our NetBIOS domain name has an invalid character in it (&). This is for the entire domain, and not a DC. Our DNS domain is name properly. From Microsoft's documentation you can change the name running Exchange 2003. But there is a disclaimer saying it doesn't work for Exchange 2007 and above. We are running Windows 2008 R2 Enterprise with Exchange 2010. Has anyone had any success changing the domain NetBIOS name with Exchange 2010 and 2008 R2? What would be the steps to rename the NetBIOS domain, thanks?

Hello, domain rename with Exchange version higher then 2003 is NOT supported, you have to export all mailboxes, remove Exchange complete from the domain, then rename, reinstall Exchange and import the mailboxes.Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Hi, I agree with “Meinolf Weber” that you will need to export and import mailboxes, uninstall and reinstall Exchange Server 2010. For more information regarding domain rename, please refer to the following Microsoft TechNet articles: How Domain Rename Works http://technet.microsoft.com/en-us/library/cc738208(WS.10).aspx Managing Active Directory Domain Rename http://technet.microsoft.com/en-us/library/cc794907(WS.10).aspx For the detailed steps regarding Exchange 2010, please submit a new question to Exchange Server 2010 forum for further assistance which is the best resource for Exchange 2010 related problem. Exchange Server 2010 http://social.technet.microsoft.com/Forums/en/exchange2010/threads Regards, Arthur Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi, I would like to confirm what is the current situation? If there is anything that I can do for you, please do not hesitate to let me know, and I will be happy to help. Regards, Arthur Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.