In Exchange System Manager, I open the properties for Message Delivery under Global Settings. If I click the Add button on the General tab to add/edit local server/network IP addresses, I get an error box that says: There is no such object on the server. Facility: Win32 ID no: c0072030 Exchange System Manager I have tried doing a reinstall of Exchange (and SP1) in case something was corrupt. That didn't help. I am running Windows 2003 SBS R2 with Exchange 2003. All service packs, patches, etc have been applied via Microsoft Update. Any help is appreciated. Thanks, Karl

I would check that you are using the right permissions in Exchange... I have come across a similar issue and it was resolved by resetting the permissions for authenticated users. Please see for more info: http://technet.microsoft.com/en-us/library/aa996198.aspx If not... Have you got any events in the Event Viewer that gives more detail? If so post them on here and I will have a look for you. Regards, Carl FerrerCi6 Ltd - Cheshire based Exchange, AD and Virtualizaton Consultants. Check out my blog: https://www.ci6.co.uk/blog