Even worse, when a user whose mailbox is in the cloud sends him an e-mail, it goes only to his cloud mailbox, and when a user whose mailbox is still on-premise, it goes only to his on-premise mailbox. So he can't see all his mail all in one place.
Even worse, when a user whose mailbox is in the cloud sends him an e-mail, it goes only to his cloud mailbox, and when a user whose mailbox is still on-premise, it goes only to his on-premise mailbox. So he can't see all his mail all in one place.