Hi, I am upgrading my NT4 domain to W2K Server. As part of the re-structure I have to move two Exchange servers and sites from one domain to another. Currently my domain has a trust relationship with the domain I wish to join. Both my Exchange sites and servers will be in the same Exchange organisation as the servers and sites in the domain I'm moving to. Will this simply be a matter of changing service account permissions on my Exchange servers to the administrative accounts of the new domain or is it more complicated than this? My current domain will cease to exist once the domain re structure is complete. I would be grateful if someone out there could give me some pointers re this. One of the servers involved will also be acting as a domain controller and will be running AD. I have a feeling that I may be attempting something here that is more tricky than I first thought. Regards Tony