Our corporate email consists of 50+ sites in which we all use the same service account for administering email. Recently, the service account was accidentally deleted. We were able too retrieve the most current SAM, in which we just had to rejoin our domain and reestablish the trust relationship. (Oh by the way, we are currently running NT 4.0 server and Exchange 5.5.) So, my question is how can I establish my own site in my own domain without effecting any user downtime. I would like to transfer all accounts. I basically would try to keep everything in tact, so that a change is not noticed. Can you help?