I need to migrate an Exchange server to a different DC, so it will require a different IP. It's a Hybrid server, the only piece of Exchange-related kit still on site. Is there any guidance online anywhere on how to do this? Everything I've found so far relates to a straight on-prem to 365 migration, or from on-prem to hybrid.
I'm aware that at a minimum I'll need to inform Office 365 somehow of the change of public IP address, and ensure firewall rules are transferred of course. fw rules are not a problem but how to inform Office 365 about the IP change?
What else is there to consider? I'm a nix admin not windowsy at all so highly nervous about migrating it.
Thanks in advance.