How to find out what server the outlook client is connected to/change it automatically

Question

Hi,
I am performing a server migration from Exchange 2010 to Exchange 2010 (the previous installation was installed by an outsourced provider and is rubbish so I'm configuring it properly). On the of things the existing server lacks is a CAS array configured,
so I have built the new Exchange 2010 server, configured a new DB and CASArray. I have created a brand new mailbox for a new user and the user's outlook shows it is connected to casarray.domain.local, I have migrated my own mailbox but internally my outlook
shows it is connected to oldserver.domain.local (under the account settings when you go to change the settings for the account), this is on a domain joined internal desktop. But at home on my personal laptop non-domain joined, it has appeared to reflect the
new casarray.domain.local. The outlook client is 2007 in both situations.
When I run the following command, it shows my mailbox is indeed connected to the new exchange server, but this is not true in outlook
Get-LogonStatistics -Server "new-exch2010" | where {$_.clientname -eq "new-exch2010"}| ft username,servername,clientname
If I run the above command against the old server my name shows on that list as well. When I look at the connection status of my outlook it shows that it is connected to casarray for directory, but the old server for mail.
A couple of other things:
Mailflow is now going to the new exchange server from the gateway over port 25, the autodiscover record in the internal DNS is now also pointing to the new exchange server, outlook clients and users computers have been completely restarted but still don’t
seem to pick up the new settings, both the old server and new server functions as a multi-role exchange having the Hub, CAS and MBX roles.
 Now that you have all that background info my question is two parts:
What is the correct powershell command I can run on the exchange server to ensure that all my outlook clients are connected to the new exchange server for all connection types (or identify those which are connected against the old server)?
How do I get the outlook clients to automatically pick up the casarray servername once their mailboxes have been migrated?
I am considering removing the CAS from the old server which may force outlook to find it’s new server but am unsure whether this will work or not, and I think I should migrate all the mailboxes into the new DB before I do this.
Other than that, I am out of ideas.
Appreciate, any help. Thanks
Steve

Answer 1

I had already run the command Get-MailboxDatabase | FL Identity,RpcClientAccessServer
and it only identified the old database as being tied to the server name, the new database has the correct casarray and all mailboxes are in this new database. should I also set the old database to point to my casarray as the second command indicates? can't
do any harm right?
also, I have outlook 2007 and 2013 at home and both of them had automatically reconfigured
themselves to point to casarray, my problem is with the internal clients.
today I have also noticed in DNS there is a Zone which points to autodiscover.domain.co.uk
and in there it points to my old server.
a few things to note about the above:
1. the zone is pointing to the .co.uk domain not the .local - is this correct?
2. should that zone even be in our internal DNS, i hadn't noticed on previous implementation
of Exchange I have done
3. if i change the record within that zone to point to my new server, will this likely show
up the popup message shown in this link http://www.rackspace.com/apps/support/portal/1218 I havent yet got a certificate for the new exchange server (few more days) and i dont want users seeing any kind of untrusted unsecure connection box or it
will only lead to panic and flooding the helpdesk
many thanks
Steve