I am removing the first exchange server in the organization and I'm at this step:
Change the server that is responsible for generating the Offline Address List
1. Start Exchange System Manager, expand Recipients, and then click the Offline Address Lists container.
2. In the right pane, right-click Default Offline Address List, and then click Properties.
In the Default Offline Address List Properties dialog box, the server that is going to be removed from the administrative group will be in the Offline address list server list.
3. Click Browse, and then type the name of the server that the replica of the Offline Address Book was added to in the "Rehome the Offline Address Book folder" section.
4. Click OK.
The new server is now listed as the Offline address list server.
5. In the Default Offline Address List Properties dialog box, click OK. You may have to quit and restart the Exchange System Manager before the change is displayed.
I'm taking this network over from contractors. There are two Offline address books listed here, one called default and one called "New". New is homed to the server I'm removing. Default seems to be mapped to a server that does not exist in the organization anymore. I have already homed "New Offline address book" to my new exchange server.
Should I home the "Default Offline address book" to the new Exchange server as well?