Outlook 2007 profile update after move to Exchange 2007

Hi,

We are transitioning to Exchange2007 and currently we have:

We have:
Exchange 2003 Back-End server.
Exchange 2003 Front-End server separate hardware. (which I want to replace now with CAS).
Exchange 2007 Mailbox server with CAS on same server.
Exchange 2007 CAS server just installed separate hardware.

I cannot uninstall Exchange CAS from Mailbox server role yet until i make CAS work properly.
I cannot uninstall Exchange 2003 Front-Edn until i make CAS work.

New CAS server we would like to name owa.company.com for resolution, but currently we have our Exch2003 Front-End server DNS pointing to owa.company.com.

So if we keep the name the same and make the replacement of Front-EndExch2k3 with CASexc2k7 all outlook profiles will not need to be updated, correct?
Or we should create new DNS pointer webmail.company.com and Outlook2007 Autodiscory automatically figure itself out?
itmtiAsked:
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NpatangCommented:
So as of now you have not moved the Mialboxes from E2k3 to E2k7 SO replacing your FE with CAS for Outlook 2003 WIll not make any difference.

For Outlook 2007 CLient you might need to create Profile so that it can start communicated with Autodiscover/SCP. You need to make sure that the URL that SCP have should be able to resolve internally and certificate should contain that URL on CAS box
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itmtiAuthor Commented:
Thank you,
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