I have two SBS domains running in the same network AD_Domain1 and AD_Domain2. AD_Domain2 runs Exchange server on the SBS Server on that domain, AD_Domain1 doesn't have exchange installed. The desire is to remove the SBS server that runs exchange and move the mailboxes to an Exchange 2010 server running on a W2K8R2 member server of AD_Domain1 and eliminate the second AD Domain. What is unclear to me is how I can move the mailboxes from AD_Domain2 to AD_Domain1 when the two domains are SBS so no trust can be created. Is there a way to get the two exchange servers connected to move the mailboxes or do I have to use something like exmerge to get the mailboxes across?