office 365 and Outlook setup

I moved from an on-prem Exchange 2013 server to O365 over the holidays.  My users whipped out their phones and tried to set up their new accounts and it works great.  It goes right to O365 and they are cooking with jet fuel.

Locally, on prem, when they delete their current mail profile and let Outlook auto configure, it's not working.  It "appears" to be still looking for an on-prem exchange server.

I DO still have an on-prem exchange server and I have not uninstalled exchange so it's still there, in AD and everything, but ALL DNS is changed and I'm expecting Outlook building new profiles to auto discover and it doesn't seem to be working.  Ideas?

Should I build a local auto discover and point the a record to the O365 portal?


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You need to clear SCP locally, if you don't have any mailboxes on-prem:
Set-ClientAccessServer –Identity ServerName -AutoDiscoverServiceInternalUri $null

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Wait for 15-20 min to get it propagated.

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crp0499CEOAuthor Commented:
just as typed or substitute some of my info somewhere in there?
Substitute ServerName with the name of your Exchange NETBIOS name.
Execute in Exchange EMS.
crp0499CEOAuthor Commented:
Thank you
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