Forum Discussion

hntaurus's avatar
hntaurus
Copper Contributor
Jul 09, 2020
Solved

Setup up autoDiscover In On-Perm DNS to integrate with O365

Hello I'm am moving all mailboxes to O365 using cutover method . but my main concern is the way that On-perm outlook clients will connect to O365. I am aware that outlook uses autodiscover , SRV R...
networking
office 365
On-Premises
  • Dominik Hoefling's avatar
    Dominik Hoefling
    Jul 10, 2020

    hntaurus Yes, you should do that as well to avoid your clients connecting to the old namespace after migration. In fact, you don't need this anymore and after your cutover, you can decommission Exchange as well.

PeterRising's avatar
PeterRising
MVP
Jul 09, 2020

hntaurus 

 

What you would need to do when your mailboxes are in Exchange Online is to change the serviceBindingInformation parameter of the service connection point in either ADSI Edit or AD Sites and Services.  The link below shows how to do that.

 

https://social.technet.microsoft.com/Forums/ie/en-US/5b0ab7b5-fb73-41f8-a0fa-5753308cf195/steps-to-remove-scp-from-adsi-edit?forum=winserver8gen

 

The SCP can be set to 

https://autodiscover.outlook.com/autodiscover/autodiscover.xml and this should take care of autodiscover for any Outlook clients inside your network.

 

  • hntaurus's avatar
    hntaurus
    Copper Contributor
    Jul 10, 2020

    PeterRising 

    Thanks a lot for your prompt reply

     

    Do I need to create SRV and CNAME for that auto discover on my Internal DNS as well?

     

    • Dominik Hoefling's avatar
      Dominik Hoefling
      MVP
      Jul 10, 2020

      hntaurus please use Exchange Management Shell to change it, not ADSIEDIT 😉

       

      Get-ClientAccessServer | Set-ClientAccessServer -AutoDiscoverServiceInternalUri https://autodiscover.outlook.com

       

      Disable-OutlookAnywhere –Server <ServerName>

       

      You only have to change/add the CNAME record in your external DNS after migration.

      • aussupport's avatar
        aussupport
        Brass Contributor
        Jul 18, 2020
        Hi Dominik,

        I have fully hybrid env with exch2010, and I just run AutoDiscoverServiceInternalUri $Null
        So how do I retrieve old value?

        TA

Resources