A mailbox user connecting via Outlook 2013 is connected to server E15MB2, as shown here in the Outlook connection status dialog.
I might have a problem with my Offline Address Book in Outlook.
For me, new colleagues are not showing up and the contact pictures aren’t displaying either.
At the moment each of the servers is configured with their own name as the internal host name for Outlook Anywhere, which is the default.
Get-Client Access Server | Get-Outlook Anywhere | select identity,*hostname Identity : E15MB1Rpc (Default Web Site) External Hostname : Internal Hostname : e15mb1.exchange2013Identity : E15MB2Rpc (Default Web Site) External Hostname : Internal Hostname : e15mb2.exchange2013We can configure a single namespace for these instead of the unique server FQDN for each.
The servers are multi-role servers and are also members of the DAG that has been deployed.