I migrated from Exchange 2003 to Exchange 2010. Everything seems to be working fine, except I have some lingering questions that I'd like to find answers to before I pull the trigger on decommissioning the 2003 box.
1. When I create a new user and new user mailbox it takes a few days before the user shows up in the Global Address list. They eventually do show up, but why does it take so long?
2. Warnings are generated in the event logs when I create a new mailbox. This is what I see: Failed to find the address type object in Active Directory for address type "CCMAIL:AMD64". I have done some reading on this and saw the posts that say to go to ASDIEdit and find "disabledGatewayProxy" and remove them from there, but there is no entry for "disabledGatewayProxy". If I go into Exchange System Manager on the Exchange 2003 server, I can edit the default Recipient Policy and uncheck CCMAIL and MS. When I do that, then I see the entry in ADSIEdit for "disabledGatewayProxy". In any case, the warning is generated. I don't think i need either the CCMAIL or the MS email aliases, so how can i get rid of this problem?
3. I went through the procedure of moving all replicas out of the Public Folders on Exchange 2003. There were a dozen or so of them listed in the "Public Folder Instances" before, and then after I executed the move there was only one left. It has been 3 days and it is still lingering in there. How can I get rid of it so I can delete the store? (I think it does say that it is located in the Exchange 2010 Database... not sure why it is still listed in this "instances" folder.)