Office 365 in an Exchange 2013 Environment

A client with an on-premises setup of Exchange 2013 decided to abandon Exchange for Office 365, but they want to keep the Exchange server around until they are sure they no longer need anything on it.

When creating a new profile in Outlook, how do you stop Outlook from automatically connecting to the Exchange server (the name and email address are automatically inserted when setting up the profile).

I have modified the autodiscover in the DC's DNS to point to but it still does it.

What else do I need to do?
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you need the msoid cname record

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Vasil Michev (MVP)Commented:
In a domain joined environment, Outlook will look at the SCP first. Best thing to do is to deploy the reg keys mentioned in this article:

All you need for O365 is the HTTP redirect (cname) endpoint.
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