You can see the errors at the link below.http://bayimg.com/daoKDaaBdI just received both of these errors. I could not see anythign related to them in the event log. I recently ran DCPROMO and transfered a the infrastructure FSMO role to our new BDC. These errors happened in the exchange management console.I appreciate any help.Thanks,Justin

Hi,I'd like to know if your DC isWindows Server 2008 R2 or not.Please post the Operstaion System for Domain Controller.If yes, then I recommend you to wait until Windows Server 2008 R2 release.It is still in beta version now.So far,it is not the supproted OS for Exchange Server.Regards,Xiu

Xiu,Thanks for the reply.The OS for my BDC is Windows server 2003 standard sp2.I restarted the exchange server and one of the errors doesn't come up. I can't remember how I produced the other one. So far it is looking good.Justin

Hi Justin,Error code in the previous post seems to be fromWindows Server 2008 R2.So I suspect that Windows Server 2008 R2 domain controller has been installed in the network.Now everything is going well with you or still cannot set-mailbox.We also can check event log and collect error event information for troubleshooting.Regards,Xiu