Team,
I am having two VM (exchange 1 and exchange 2) on hyper on which i had installed multi role exchange binaries i.e (cas and mailbox) on both vms. Due to maintainance i had switch off exchange 2 server. My observation was after switching off exchange 2 server. All users outlook client was showing connected but mail flow was not happening internal as well as external. After switching on exchange 2 server mail flow start working. Please suggest what will be the issue.
Note : For load balancing exchange servers we have array load balancer in our infra.