Now, it is time to inform the users about the situation. To do that log on with an Administrator mailboxes and send a message for all affected users (we can pick them up from the Global Address List without problems) saying that they will be working in an empty database to send and receive messages and in this meantime the old messages will being recovered in the original server.

For users using OWA they will stop to receive the error messages and they will get an empty mailbox, as shown in Figure 05. It occurs because the CAS (Client Access Server) will redirect them to the new Mailbox Server.

Figure 05: The users will see a empty mailbox

Users running Outlook 2007 will be automatically set up for the new mailbox servers through AutoDiscover services. If the users use Outlook 2007 in cache mode they will receive a pop up message the next time that they run the Outlook 2007, as shown in Figure 06.

Figure 06: The user have to choose between old data without connectivity or the mailbox located in the dial tone database without historical messages

If the users select Use Old Data (Figure 07), the user will be able to access the old information but they will not able to send and receive messages. We can verity that the Outlook 2007 indicates that is defined as Disconnected.

Figure 07: User Lidiana.Zamprogna accessing her old information with Outlook 2007 in disconnected mode