We're in the middle of migrating to Exchange 2010. When it's done, our SA in charge of Exchange will be moving to a non-technical position within the department. We're taking this opportunity to review Exchange administration procedures, which raises the question:
If the Exchange admin's sole responsibility is managing MS Exchange, does that person need an account that's a member of Domain Administrators? If not, are there any documents available describing least-permission for SAs managing Exchange?