We moved to Office 365 earlier this year. We have a single on-premise Exchange 2010 server that is no longer used. All mailboxes, contacts, distribution groups, public folders, databases have been removed. We manage Exchange users in Office 365 and AD accounts locally.
I need to make room on our rack and wish to remove our 2U old Exchange server.
All "mail" attributes have been populated properly for each user. I believe this is the equivalent to converting all users to "mail-enabled" users. I use a third-party utility for password synchronization and that's working fine.
Is there any compelling reason why I shouldn't uninstall Microsoft Exchange 2010 from the server, power it down and remove it from the server room ? Am I missing anything critical ?