I have an Exchange 2010 hybrid environment. We use Office 365 for our mail now, but keep the hybrid environment as we manage users, etc on-premise and do some SMTP relaying against the hybrid server. I'm to the point where I want to remove the old Exchange server from the environment and have the hybrid Exchange server do all of the work. I have a link from MS that talks about how to do this. However, when I looked at the link in depth, it's really about removing the hybrid environment, which is NOT what I want to do.
Ultimately I want to remove the old original Exchange server and be left with the hybrid one that the consultant set up. Is this as simple as just removing an Exchange server from the environment where it's not the last Exchange server? If so, does someone have a link to some good documentation on this?