Recover a mailbox server role

- [Narrator] In prior Exchange versions, the Mailbox role…was not essential for every Exchange server.…You could split the various roles up into different servers.…But now, every Exchange Server except for the…Edge Transport, needs to have the Mailbox role…installed on it, and you cannot separate it…from Exchange itself.…So, how do we resolve a corrupt Mailbox role,…where Exchange ceases to function properly,…even though the databases are working just fine?…Well, we do that by adding a second Exchange Server.…

In our case, we've already installed a…second Exchange Server, but you can do this by…adding another server, putting Windows Server…2012 on it, followed by Exchange Server 2016.…Once you join the organization, then you'll see…multiple servers in your server list, as you see here.…The next thing we need to do, is to determine…what mailboxes are on the server that has the…corruption problem, and move them over to the…replacement temporary server, by clicking on recipients,…and from here we'll click on the three dots,…